Schedule

The optical behaviour of frustules in the centric phytoplankton species Cyclotella Quillensis was investigated using SEM, AFM and SNOM techniques. Our results revealed a photonic crystal lattice that was analysed by photonic band structure simulations

Authors:Santiago Bernal/McGill University Yannick D'Mello/McGill University Dan Petrescu/McGill University Mark Andrews/McGill University David Plant/McGill University

We present a nano-photonic lattice to sort bacteria with equivalent size but different shapes. It has an ultra-sensitive trapping capability for the two bacteria with S. aureus above 95% and E. coli less than 3%.

Authors:Yuzhi Shi/Nanyang Technological University Yi Zhang/Nanyang Technological University Peng Huat Yap/Nanyang Technological University Ai Qun Liu/Nanyang Technological University

Point-spread-function engineering enables the extraction of depth information from fluorescence microscopy images by sacrificing lateral resolution and labeling density. Here, we introduce a bifurcated multimodal approach that facilitates 3D super-resolution in densely labeled samples

Authors:Boris Ferdman/Technion Elias Nehme/Technion Lucien Weiss/Technion Reut Orange/Technion Yoav Shechtman/Technion

By coupling surface-enhanced Raman spectroscopy (SERS) with thin-layer chromatography, hybrid photonic crystal-plasmonic devices provide lab-on-a-chip functionalities for separating and detecting multiple chemical targets in a complex solution.

Authors:Kundan Sivashanmugan/Oregon State University Kenneth Squire/Oregon State University Boxin Zhang/Oregon State University Alan Wang/Oregon State University

A point-of-care technology is critically needed for detection of low-abundance arboviral biomarkers. We introduce an optofluidic-nanoplasmonic diagnostic platform enabling ultrasensitive detection of infectious arboviruses in human serum at attomolar concentrations.

Authors:Xiangchao Zhu/University of California Mustafa Mutlu/University of California Jose Fuentes/University of California Ray Jara/University of California Alexandra Hunsinger/University of California Kyle O’Rourke/University of California Ahmet Yanik/University of California

A multi-color spectral flow cytometry panel targeting receptors on MCF-7 breast cancer cells is used to potentially identify a tamoxifen resistant subpopulation. Results using separate resistant and normal cells indicate detection and sorting is plausible.

Authors:Aric Bitton/New Mexico State University Jessica Houston/New Mexico State University Kevin Houston/New Mexico State University

We demonstrated formation and transportation of microdroplets by laser heating to generate a temperature gradient on a GeSbTe substrate. We observed inverse Marangoni effect, in which a toluene/PEG mixed droplet moved towards higher temperature region.

Authors:Yuka Takamatsu/Keio University Masashi Kuwahara/National Institute of Advanced Industrial Science and Technology Toshiharu Saiki/Keio University

We propose a narrow linewidth solid-state based superradiant laser, which is almost insensitive to the cavity mirror vibration, the best frequency-stable local oscillators and employed in quantum metrology.

Authors:Mahmood Sabooni/Institute for Quantum Computing (IQC) Kyung Soo Choi/Institute for Quantum Computing (IQC)

We demonstrate microscopic optics with high transmittance of 89% using custom-made objective lenses, anti-reflection-coated cover slips, and axicons for beam shaping. We carefully designed the optics considering the position-dependent transmittance of the objective lenses.

Authors:Natsuha Ochiai/The University of Tokyo Yasuyuki Ozeki/The University of Tokyo

We present and experimentally demonstrate an integrated magnetic quantum sensing platform, based on nanophotonic chip interfaced to microfabricated alkali vapor cells. Applications such as magnetometry and off-resonance modulation free laser stabilization are discussed.

Authors:Yoel Sebbag/The Hebrew University of Jerusalem Alex Naiman/The Hebrew University of Jerusalem Eliran Talker/The Hebrew University of Jerusalem yefim barash/The Hebrew University of Jerusalem Uriel Levy/The Hebrew University of Jerusalem

We experimentally demonstrate high-fidelity (~0.98), polarization-based single-photon transmission and entanglement distribution over a 36-meter-long, low-loss (<10 dB/km), 800 nm-guiding hollow-core conjoined-tube fiber quantum channel, which inherently possesses low transmission latency.

Authors:Xinyu Chen/National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University Wei Ding/Institute of Photonics Technology, Jinan University Ying-Ying Wang/Institute of Photonics Technology, Jinan University Shou-Fei Gao/Institute of Photonics Technology, Jinan University Fei-Xiang Xu/National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University Hui-Chao Xu/National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University Yi-Feng Hong/Institute of Laser Engineering, Beijing University of Technology Yi-Zhi Sun/Institute of Photonics Technology, Jinan University Pu Wang/Institute of Laser Engineering, Beijing University of Technology Lijian Zhang/National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University

We present results on trapping ensembles of cold atoms with metasurface optics for portable atomic clock application, and progress towards single atom trapping and detection in high-NA optical tweezers with dielectric metalenses.

Authors:Ting-Wei Hsu/JILA,University of Colorado at Boulder Tobias Thiele/JILA,University of Colorado at Boulder Wenqi Zhu/National Institute of Standards and Technology Mark Brown/JILA,University of Colorado at Boulder Scott Papp/National Institute of Standards and Technology Amit Agrawal/National Institute of Standards and Technology Cindy Regal/JILA,University of Colorado at Boulder

We experimentally and theoretically evaluate the performance of a quantum sensor based on Rydberg atoms across the entire radio-frequency spectrum from DC to 1 THz and make fundamental comparisons with other sensor types.

Authors:Kevin Cox/US Army Research Laboratory David Meyer/US Army Research Laboratory Zachary Castillo/US Army Research Laboratory Paul Kunz/US Army Research Laboratory

We integrate a semiconductor nanowire embedded quantum dot with a single-mode fiber. To maximize photon collection, we optimize the nanowire geometry and align the lens-tipped fiber with the nanowire using lithographically defined structure.

Authors:Rubayet Al Maruf/University of Waterloo Divya Bharadwaj/University of Waterloo Paul Anderson/University of Waterloo Jiawei Qiu/University of Waterloo Mohd Zeeshan/University of Waterloo Philip Poole/National Research Council of Canada Dan Dalacu/National Research Council of Canada Michael Reimer/University of Waterloo Michal Bajcsy/University of Waterloo

We present reasons for sharing the fibres by both Quantum key distribution and telecommunication traffic and propose suitable wavelength band and verify injection of such Quantum key distribution signal into telecommunication fibre with no impact to transmission system performance.

Authors:Josef Vojtech/CESNET Rudolf Vohnout/CESNET Tomáš Horváth/CESNET Sarbojeet Bhownick/CESNET Martin Slapak/CESNET Petr Munster/CESNET Ondrej Havlis/CESNET Radek Velc/CESNET Jan Kundrat/CESNET Pavel Skoda/CESNET Lada Altmannova/CESNET Michal Hazlinsky/CESNET Vladyslav Usenko/Dept. Optics, Palacky university Vladimir Smotlacha/Dept. Applications for technologies CESNET

Current QKD protocols are limited to wired point to point key exchange. Utilizing drones, we work to establish free space quantum channels. Here, we report the progress of the tracking system used on the drones.

Authors:Samantha Isaac/University of Illinois at Urbana-Champaign Andrew Conrad/University of Illinois at Urbana-Champaign Alex Hill/University of Illinois at Urbana-Champaign Kyle Herndon/University of Illinois at Urbana-Champaign Brian Wilens/University of Illinois at Urbana-Champaign Dalton Chaffee/University of Illinois at Urbana-Champaign Daniel Sanchez-Rosales/Ohio State University Roderick Cochran/Ohio State University Daniel Gauthier/Ohio State University Paul Kwiat/University of Illinois at Urbana-Champaign

We demonstrate a continuous-wave optical vortex source operating at 1108 nm, corresponding to the weaker Raman transition at 382 cm⁻¹ in Nd:GdVO₄, by employing an annular beam pumping geometry.

Authors:Yuanyuan Ma/Chiba University Andrew Lee/Macquarie University Helen Pask/Macquarie University Takashige Omatsu/Chiba University

Phase offset locking between two 689 nm diode lasers is performed. The frequency variation of the beat note is suppressed within 0.2 Hz and phase noise is reduced by 30 dB at 100 Hz.

Authors:shengnan zhang/University of Birmingham Yeshpal Singh/University of Birmingham Kai Bongs/University of Birmingham

A compact solid-state laser based on a novel composite Yb:YAG/YAG pyramidal active-mirror is proposed with a folded cavity optical structure. Numerical simulation results predict pulse energy of 10.57mJ with 16.02% optical efficiency obtained.

Authors:Peng Wang/Beihang University Yanxiong Niu/Beihang University Chunxi Zhang/Beihang University Di Feng/Beihang University

We propose a stable random fiber Bragg grating based random fiber laser with ring cavity. The linewidth is only 1.63 kHz, which is the narrowest in Random fiber laser to the best of our knowledge.

Authors:Jie Hu/Huazhong Univ of Science and Technology Yifei wang/Huazhong Univ of Science and Technology Zhikun Xing/Huazhong Univ of Science and Technology Tongda Li/Huazhong Univ of Science and Technology Zhen Wang/Huazhong Univ of Science and Technology Zhijun Yan/Huazhong Univ of Science and Technology Qizhen Sun/Huazhong Univ of Science and Technology Deming Liu/Huazhong Univ of Science and Technology

We present a numerical simulation technique for short laser pulse amplification in solid-state crystals. It takes into account the full spatial pumping profile by solving the 3-dimensional photon transport and allows to calculate pulse energy accurately.

Authors:Christoph Pflaum/Universität Erlangen-Nürnberg Ramon Springer/Universität Erlangen-Nürnberg

We report on the generation of 103 mJ mid-infrared pulses at 1.7 mm using a BBO dual-chirped optical parametric amplification scheme (DC-OPA) and discuss the octave-spanning DC-OPA by using the dual pumping scheme.

Authors:Lu Xu/RIKEN Kataro Nishimura/RIKEN Akira Suda/Tokyo University of Science Katsumi Midorikawa/RIKEN Eiji Takahashi/RIKEN

Pursuing high coherent light sources with spectral purity, rapid tuning speed and wide wavelength range, we propose a fast tunable narrow-linewidth fiber laser assisted by acoustically-induced polarization conversion in dispersion compensation fiber.

Authors:Yujia Liu/Chongqing University Yu Long Cao/Chongqing University Haonan Han/Chongqing University Ligang Huang/Chongqing University Tianyi Lan/Chongqing University Lei Gao/Chongqing University Tao Zhu/Chongqing University

We theoretically investigate transverse mode instability (TMI) in ytterbium doped ring-core fiber. The unique geometry reduces thermal load and enhances gain saturation effect, leading to large suppression of TMI. Gaussian-like beam is formed at far-field.

Authors:Nan Xia/Nanyang Technological University Seongwoo Yoo/Nanyang Technological University

Building on past support, NSF has funded the Zetawatt Equivalent Ultrashort pulse laser System (ZEUS), a mid-scale 3PW multi-beam user facility, to explore nonlinear quantum electrodynamics, relativistic plasmas, and other phenomena in High-Field Science. © 2020 The Authors.

Authors:John Nees/University of Michigan Anatoly Maksimchuk/University of Michigan Galina Kalinchenko/University of Michigan Bixue Hou/University of Michigan Yong Ma/University of Michigan Paul Campbell/University of Michigan Andrew McKelvey/University of Michigan Louise Willingale/University of Michigan Igor Jovanovic/University of Michigan Carolyn Kuranz/University of Michigan Alexander Thomas/University of Michigan Karl Krushelnick/University of Michigan

A single-longitudinal-mode operation of a self-resonating enhancement cavity with the finesse of 524 was achieved without any feedback control, demonstrating a capability to automaticaly follow the cavity resonance frequency against environmental disturbance.

Authors:Yuuki Uesugi/Tohoku University Alexander Aryshev/High Energy Accelerator Research Organization Masafumi Fukuda/High Energy Accelerator Research Organization Tsunehiko Omori/High Energy Accelerator Research Organization Nobuhiro Terunuma/High Energy Accelerator Research Organization Junji Urakawa/High Energy Accelerator Research Organization Tohru Takahashi/Hirohima University Yuya Koshiba/Waseda University Seiya Otsuka/Waseda University Masakazu Washio/Waseda University Yuji Hosaka/National Institutes for Quantum and Radiological Science and Technology Shunichi Sato/Tohoku University

We demonstrate an all-fiber mode conversion frequency shifter (MCFS) for optical heterodyne microvibration detection, which efficiently converts LP₁₁ core mode to LP₀₁ mode and acts as a frequency shifter. The SNR is ~ 65 dB.

Authors:Zhang kun/Shanghai Institute of Optics and Fine Mechanics

A thin-disk multipass amplifier with good stability for the thermal lensing of disk is presented. Simulations and experiments demonstrated slight beam variations on the disk of which the dioptric power varies in a wide range.

Authors:Hantian Chen/Huazhong University of Science and Technology Enmao Song/Huazhong University of Science and Technology Jing Dong/Huazhong University of Science and Technology Xiao Zhu/Huazhong University of Science and Technology Hailin Wang/Huazhong University of Science and Technology Guangzhi Zhu/Huazhong University of Science and Technology

We researched the mid-infrared absorption changes of micro-structured silicon prepared in SF6, N2, and NF3, the different changes mainly due to the concentrations of impurities doped in surface layer.

Authors:Haibin Sun/Key laboratory of intelligent infrared perception, Chinese academy of science Shengli Sun/SITP Fuchun Chen/SITP Guifu wang/SITP

A machine learning-based model was trained on beam propagation simulation data of a femtosecond laser direct written 1-D waveguide array structure with varying refractive indices, to predict the refractive index difference of laser-induced waveguide.

Authors:Mohan Wang/University of Pittsburgh Sheng Huang/University of Pittsburgh Jingyu Wu/University of Pittsburgh Kehao Zhao/University of Pittsburgh Zhi-Hong Mao/University of Pittsburgh Kevin Chen/University of Pittsburgh

A 5 nm super high-resolution laser direct writing lithography technique has been developed that exhibits great capability for the fabrication of well site-control and mass-production nanogap electrodes and directly electrically modulated nano-sensing chips.

Authors:Liang Qin/Suzhou Institute of Nano-Tech and Nano-Bionics Yuanqing Huang/Suzhou Institute of Nano-Tech and Nano-Bionics Feng Xia/Qingdao University Lei Wang/National Center for Nanoscience and Technology Jiqiang Ning/Suzhou Institute of Nano-Tech and Nano-Bionics Hongmei Chen/Suzhou Institute of Nano-Tech and Nano-Bionics Xu Wang/Suzhou Institute of Nano-Tech and Nano-Bionics Wei Zhang/Suzhou HWN Nanotec. Co., LTD. Yong Peng/Lanzhou University Qian Liu/National Center for Nanoscience and Technology Ziyang Zhang/Suzhou Institute of Nano-Tech and Nano-Bionics

Immiscible metallic nanoalloys (Rh-Au) have been synthesized using the confinement effect of bubble. Synthesized Rh-Au alloy which is printed on the substrate has been implemented as reducing catalyst in the conversion of p-nitrophenol with NaBH₄.

Authors:Bharath Rajeeva/University of Texas at Austin Pavana Siddhartha Kollipara/University of Texas at Austin Pranaw Kunal/University of Texas at Austin Simon Humphrey/University of Texas at Austin Yuebing Zheng/University of Texas at Austin

A novel method, confirmed theoretically and experimentally, is demonstrated to regulate the material removal mechanism in fs-laser processing via elevating the initial temperature of the sample, which effectively improves the processing quality.

Authors:Zhixuan Li/Nankai University Jinze Li/Nankai University Qiang Wu/Nankai University Xiaoyang Hu/Nankai University Xinda Jiang/Nankai University hao xiong/Nankai University Jianghong Yao/Nankai University Jingjun Xu/Nankai University

We present a 130 W femtosecond all-fiber laser at 1.0 μm that works at a fundamental repetition rate of up to 1.2 GHz, which is expected to be a promising alternative for high-throughput material process.

Authors:Yicai Liu/South China University of Technology Wei Lin/South China University of Technology Wenlong Wang/South China University of Technology Xiaoming Wei/South China University of Technology Zhongmin Yang/South China University of Technology

We report on As₂S₃ glass surface transmission increase from 82.5% to 92% in range from 3 to 5 μm through femtosecond pulsed laser treatment.

Authors:Andrey Bushunov/Bauman Moscow State Technical University Andrei Teslenko/Bauman Moscow State Technical University Mikhail Tarabrin/Bauman Moscow State Technical University Vladimir Lazarev/Bauman Moscow State Technical University Gennady Snopatin/Institute of Chemestry of High-Purity Substances of the Russian Academy of Sciences Vasilii Kolvtashev/Fiber Optics Research Center of the Russian Academy of Sciences Victor Plotnichenko/Fiber Optics Research Center of the Russian Academy of Sciences

Super-black stainless-steel (SS) surfaces were prepared by nanosecond laser irradiation giving low reflectivities close to 0.5% over broad wavelength range of 250-1800 nm and even lower (0.14%) over 250-850 nm.

Authors:D. Narayana Rao/University of Hyderabad Sri Ram Naraharisetty/University of Hyderabad Md Abu Taher/University of Hyderabad

We report a new error source for the frequency of glass-cell based secondary time-frequency standards. That is, a frequency shift by helium collision was perceived where the helium atoms were confirmed as from the atmosphere

Authors:Wang-Yau Cheng/NCU Ko-Han Chen/NCU Chien-Ming Wu/NCU Su-Ron Wu/NCU Hsin-Hung Yu/NCU Tz-Wei Liu/NCU

We demonstrate a hybrid swept wavelength interferometry -- dual-comb spectroscopy system for fast broadband full-field measurements. Phase and amplitude retrieval is experimentally verified and compensation of laser sweep nonlinearity is demonstrated without external referencing.

Authors:Mikael Mazur/Chalmers University of Technology Nicolas Fontaine/Nokia Bell Labs Magnus Karlsson/Chalmers University of Technology Peter Andrekson/Chalmers University of Technology Victor Company/Chalmers University of Technology Jochen Schröder/Chalmers University of Technology

Low phase noise microwave frequency generation with low power and miniaturized optical frequency comb may greatly impact future space-based Very Long Baseline Interferometry (VLBI) missions. We will show our analysis of the frequency and timing requirements of such missions.

Authors:Lin Yi/California Institute of Technology Eric Burt/California Institute of Technology Wei Zhang/California Institute of Technology

By compensating the pump laser noise of a 300 GHz microresonator soliton comb, we analyze its impact on each comb line as well as the repetition rate. We demonstrate a timing noise of 200 as/Hz^1/2.

Authors:Tomohiro Tetsumoto/IMRA America Inc. Mark Yeo/IMRA America Inc. Antoine Rolland/IMRA America Inc.

We demonstrate a narrow linewidth electro-optic modulator based frequency comb with a simple modulator configuration. It was achieved by a servo control of a fragment of a high-frequency modulation signal through a low-frequency voltage-controlled oscillator.

Authors:Ken Kashiwagi/National Metrology Inst. of Japan, AIST Sho Okubo/National Metrology Inst. of Japan, AIST Hajime Inaba/National Metrology Inst. of Japan, AIST

We experimentally demonstrate injection locking of an optomechanical oscillator driven at multiple harmonics of its fundamental frequency. The measured Arnold tongues show strongest synchronization when driven at even harmonics.

Authors:Caique Rodrigues/Unicamp Cauê Moreno Kersul de Castro Carvalho/Unicamp Michal Lipson/Columbia University Thiago Alegre/Unicamp Gustavo S. Wiederhecker/Unicamp

The 2.7ps time resolution of single shot waveform measurement was experimentally performed by measuring on frequency domain using improved optical frequency comb analyzer based on dual-hetero dyne mixing in time-division multiplexing.

Authors:Hiroali Tada/Saitama University Hayate Imai/Saitama University Nasrin Sultana/Saitama University Shioda Tatsutoshi/Saitama University

A doubling of the slope sensitivity of a mode-locked laser gyroscope is experimentally demonstrated,
This enhancement is through resonant dispersion applied to all modes of the frequency combs
interfered to produce the beat note response.

Authors:James Hendrie/University of New Mexico Ning Hsu/University of New Mexico Ladan Arissian/University of New Mexico Matthias Lenzner/University of New Mexico Jean-Claude Diels/University of New Mexico

An in-situ waveguide loss measurement technique using a reflection-based scattering NSOM is developed. Putting a vibrating probe in different places along the waveguide, we accurately ac-quire local loss values of different segments of silicon nano-waveguides.

Authors:Yi-Zhi Sun/Inst of Photonics Technology, Jinan Univ Xiao-Hong Yan/Institute of Physics, Chinese Academy of Sciences Hong Wei/Institute of Physics, Chinese Academy of Sciences Sylvain Blaize/Université de Technologie de Troyes Renaud Bachelot/Université de Technologie de Troyes Wei Ding/Inst of Photonics Technology, Jinan Univ

A high-resolution and large-bandwidth spectral analysis is demonstrated utilizing tunable laser and micro-comb. Bandwidth is extended by 100 times up to 2.5 THz with 2-MHz resolution and a high-Q resonator is successfully characterized in L-band.

Authors:Hao Hu/Wuhan National Laboratory for Optoelectr liao chen/Wuhan National Laboratory for Optoelectr Ruolan Wang/Wuhan National Laboratory for Optoelectr Yanjing Zhao/Wuhan National Laboratory for Optoelectr Xinyu Wang/Xi’an Institute of Optics and Precision Mechanics (XIOPM) Weiqiang Wang/Xi’an Institute of Optics and Precision Mechanics (XIOPM) Chi Zhang/Wuhan National Laboratory for Optoelectr Wenfu Zhang/Xi’an Institute of Optics and Precision Mechanics (XIOPM) Xinliang Zhang/Wuhan National Laboratory for Optoelectr

We have demonstrated a pair of counter-propagating superluminal Raman lasers without cross-talk, employing two different gain cells, each containing two isotopes of Rb, as a key step in realizing an ultrasensitive rotation sensor.

Authors:Zifan Zhou/Northwestern University Minchuan Zhou/Northwestern University Selim Shahriar/Northwestern University

We demonstrate a sub-picosecond resolution time-offset comparison over l00 km long fiber between using asynchronized dual-comb linear optical sampling and the time interval counter.

Authors:Abulikemu Abuduweili/Peking University Xing Chen/Beijing University of Posts and Telecommunications Wenbo Ma/Peking University Zhigang Zhang/Peking University

We generate a high stability 10 GHz microwave signals with close to 30 dB of comb noise suppression via optical frequency division using a transfer oscillator scheme.

Authors:Archita Hati/NIST Marco Pomponio/NIST Nick Nardelli/NIST Esther Baumann/NIST Tara Fortier/NIST Craig Nelson/NIST

An inkjet-printed lasing microarray based on water/hydrogel micro-droplets was first demonstrated, where single-mode lasing was employed for precise biomolecular interaction analysis. This work represents a milestone to implement laser technology towards high-throughput biomedical analysis.

Authors:Xuerui Gong/Nanyang Technological University Peng Guan/Nanyang Technological University Shilun Feng/Nanyang Technological University Zhen Qiao/Nanyang Technological University Zhiyi Yuan/Nanyang Technological University YU-CHENG CHEN/Nanyang Technological University

We demonstrate automated C₂H₂ direct absorption spectroscopy using a CW, tunable optical parametric oscillator, with a resolution of <5x10^-4 cm^-1 at 2 cm^-1/min. We improve the resolution substantially by locking to a frequency comb.

Authors:David Foote/Toptica Photonics, Inc. Matthew Cich/Toptica Photonics, Inc. Walter Hurlbut/Toptica Photonics, Inc. Ulrich Eismann/TOPTICA Photonics AG Adam Heiniger/Toptica Photonics, Inc. Daniel Christensen/Lumencor Inc Chris Haimberger/Toptica Photonics, Inc.

We propose a method for real-time spectral analysis of high-frequency and high-bandwidth waveforms, without the downconversion stage. Time-mapped spectrograms of nanosecond-long microwave pulses modulated on high carrier frequencies are captured directly in a real-time scope.

Authors:Saikrishna Konatham/INRS-EMT Luis Cortés/INRS-EMT Jun Chang/Centre for Optics, Photonics and Lasers Leslie Rusch/Centre for Optics, Photonics and Lasers Sophie LaRochelle/Centre for Optics, Photonics and Lasers Jose Azana/INRS-EMT

We demonstrate an achromatic multi-level diffractive lens, which has a focal length of 25 mm, aperture diameter of 8.93 mm, and thickness of 2.6 µm operating in the SWIR band (875 nm - 1675 nm).

Authors:Sourangsu Banerji/University of Utah Monjurul Meem/University of Utah Apratim Majumder/University of Utah Curt Dvonch/Lockheed Martin Corp. Berardi Rodriguez/University of Utah Rajesh Menon/University of Utah

We demonstrate a mobile quantum gravimeter measuring tidal gravity variations in the laboratory and surveying gravity in the field. With simplicity and sensitivity, our instrument paves the way for bringing quantum sensors to field applications.

Authors:Xuejian Wu/University of California Berkeley Storm Weiner/University of California Berkeley Zachary Pagel/University of California Berkeley Bola Malek/University of California Berkeley Holger Müller/University of California Berkeley

We experimentally demonstrate a method for in-service optical physical layer security monitoring with vacuum-noise sensitivity that can detect a 1% fiber tapping attack at 50km without classical security loopholes.

Authors:Yupeng Gong/University of Cambridge Shuai Yang/University of Cambridge Jeffrey Hunt/Boeing company adrian wonfor/University of Cambridge Richard Penty/University of Cambridge Ian White/University of Cambridge

Disagreement exists between theory and experiment when we study surface plasmon resonance (SPR) of gold film with graphene. We attribute this large shift in SPR angle to the rough gold film and wrinkled graphene layer.

Authors:Chao Niu/Baylor University Md Alam/University of Houston Jonathan Hu/Baylor University Zhiming Wang/University of Electronic Science and Technology of China Jiming Bao/University of Houston

Resonant responses of flat surfaces and sharp edges of the nanostructures supporting phonon polaritons are studied aiming at the prediction of scattering-type SNOM response and developing a modeling approach that adequately describes the nanostructure resonant behavior.

Authors:Fatih Ince/University of New Mexico Viktoriia Babicheva/University of New Mexico

We report a new type of reflective polarizer based on free-space coupling to surface-plasmon polaritons that has a high extinction ratio and high efficiency at infrared frequencies.

Authors:Alireza Shahsafi/University of Wisconsin-Madison Jad Salman/University of Wisconsin-Madison Bryan Rubio Perez/University of Wisconsin-Madison Yuzhe Xiao/University of Wisconsin-Madison Chenghao Wan/University of Wisconsin-Madison Mikhail Kats/University of Wisconsin-Madison

Three types of pulsating soliton dynamics are experimentally observed in a hybrid, dispersion-managed mode-locked fiber laser. It provides new insights into the complex nonlinear soliton behavior in ultrafast lasers and potential ways to control them.

Authors:Jie Chen/Beihang University Xin Zhao/Beihang University Ting Li/Beihang University Jianjun Yang/Beihang University Jiansheng Liu/Beihang University Zheng Zheng/Beihang University

We demonstrate the energy localization at the end of an abruptly terminated topologically nontrivial waveguide. This localization relies on a near-conservation of the valley degree of freedom and does not require time-reversal symmetry breaking.

Authors:Yandong Li/Cornell University Yang Yu/Cornell University Fengyu Liu/University of Maryland Baile Zhang/Nanyang Technological University Gennady Shvets/Cornell University

We find a zero-energy corner state in a non-Hermitian quadrupole insulator without an Hermitian counterpart, and the response of the system near zero energy can be drastically different from Hermitian systems.

Authors:Yang Yu/Cornell University Gennady Shvets/Cornell University

Analogs of the quantum spin Hall effect (QSHE) in classical waves are mostly based on the construction of pseudo-spins. Here we demonstrate analogs of QSHE in classical waves by utilizing the orbital angular momentum.

Authors:Meng Xiao/Wuhan University Jiang Tianshu/the Hong Kong University of Science and Technology Chan C. T./the Hong Kong University of Science and Technology

An FDTD simulation based study of a mid-IR chiral metamaterial showing enhanced circular dichroism by stacking multiple chiral layers as well as changing the order of enantiomeric layer stacking.

Authors:Hannah Barnard/University of Exeter Eleanor Barr/University of Exeter Geoffrey Nash/University of Exeter

We report continuous ‘coherently controlled’ tuning of the wavefront of light scattered by phase-gradient silicon metasurfaces, which enables optical-frequency beam steering and dynamic focusing without moving parts.

Authors:Fei He/University of Southampton Kevin MacDonald/University of Southampton Xu Fang/University of Southampton

We have studied spectra and angular distribution of emission of Rhodamine 6G dye in Fabry-Perot cavities in weak and strong coupling regimes and demonstrated control of the strong coupling with the pumping intensity.

Authors:Md Omar Faruk/University of California Irvine Mikhail Noginov/Norfolk State University Nelly Jerop/Norfolk State University

We propose and demonstrate a near-infrared invisibility cloaking by using a double-layered metamaterial film. 1020-nm-band light is guided so as not to hit a tungsten wire around which the film is wound.

Authors:Tomo Amemiya/Tokyo Institute of Technology Hibiki Kagami/Tokyo Institute of Technology Makoto Tanaka/Tokyo Institute of Technology Sho Okada/Tokyo Institute of Technology Nobu Nishiyama/Tokyo Institute of Technology Mayu Takagi/Toyota Motor Corporation Tatsuhiro Urakami/Mitsui Chemicals, Inc.

Replacing the dielectric spacer layer in a Salisbury screen with a nonlinear doped ENZ slab, we theoretically demonstrate the possibility of obtaining a tailorable nonlinear absorber.

Authors:Ehsan Nahvi/University of Pennsylvania Inigo Liberal/Public University of Navarra Nader Engheta/University of Pennsylvania

We design cylindrical multilayer structures by exploiting anisotropy and topological features.
This provides a new approach to tailor electromagnetic fields into desired patterns with
angular momentum in cylindrical geometries as topologically protected resonators and fibers.

Authors:Laura Pilozzi/Italian National Research Council Claudio Conti/Italian National Research Council

We experimentally demonstrated polarization independent, angle tolerant mid-infrared notch filters using amorphous-Germanium 2D high contrast gratings. Centered at 7.42 µm wavelength, the filter exhibits wide field-of-view notch filtering characteristics across 0 to 30^o incidence angles.

Authors:Lal Krishna A S/Indian Institute of Science Viphretuo Mere/Indian Institute of Science Shankar Selvaraja/Indian Institute of Science Varun Raghunathan/Indian Institute of Science

We propose and demonstrate a way to accomplish photonic topological phase transition by a specially-arranged photonic crystal slab selectively loaded by a phase-change material: Ge₂Sb₂Te₅ (GST) or Ge₂Sb₂Se₄Te₁ (GSST), which enables reconfigurably tunable edge modes.

Authors:Takahiro Uemura/Tokyo institute of Technology Hisashi Chiba/Tokyo institute of Technology Taiki Yoda/Tokyo institute of Technology Yuto Moritake/Tokyo institute of Technology Yusuke Tanaka/NTT Corporation Masaya Notomi/Tokyo institute of Technology

We introduce the concept of `coherence group velocity’, which is the speed of the peak of the coherence function and demonstrate experimentally that incorporating spatio-temporal spectral structure into a field allows tuning its coherence group velocity in free space.

Authors:Murat Yessenov/University of Central Florida, CREOL Ayman Abouraddy/University of Central Florida, CREOL

We report a neural network trained for the inverse design of layered planar photonic structures, able to handle arbitrary incidence conditions and high spectral complexity using a selection of candidate materials in the design.

Authors:Rohit Unni/University of Texas at Austin Kan Yao/University of Texas at Austin Yuebing Zheng/University of Texas at Austin

We theoretically investigate the effects of a material’s linear permittivity ε on its nonlinear response, showing that conversion efficiency increases as ε decreases, consistent with other groups’ measurements of unusually high effective nonlinear refractive index in transparent conducting oxides.

Authors:Diego M. Solis/University of Pennsylvania Nader Engheta/University of Pennsylvania

A guide-mode resonance-based Indium Tin Oxide electrical tunable metasurface is proposed. By forming two metal-oxide-semiconductor capacitors in a single period, resonance wavelength can be tuned larger than 20nm in near-IR spectral range.

Authors:Xiaoming Qiu/Peking University Fan Yang/Peking University Yanping Li/Peking University Fan Zhang/Peking University

We demonstrate near perfect absorption (> 95%) in the near-infrared from 127 nm thick ITO films backed with various thicknesses (7 nm – 25 nm) of Pt. This absorption is achieved by exciting two plasmon modes associated with epsilon-near-zero behavior.

Authors:Stephen O'Brien/University of Dublin Trinity College Frank Bello/University of Dublin Trinity College Lisanne Peters/University of Dublin Trinity College Christopher Smith/University of Dublin Trinity College David McCloskey/University of Dublin Trinity College John Donegan/University of Dublin Trinity College

Self-induced nonreciprocal transmission is demonstrated due to the enhanced Kerr nonlinear effect in compact epsilon-near-zero media photonically doped with gain and loss defects. Unitary transmission contrast is obtained by operating close to the exceptional point.

Authors:Boyuan Jin/University of Nebraska Lincoln Christos Argyropoulos/University of Nebraska Lincoln

We map the optical properties with Raman, PL and SHG methods of a single gradient 2D alloy flake with spatially varying composition of CVD grown WSe₂-WS₂ monolayers that can be used in novel opto-electronics devices.

Authors:MUHAMMED KILINC/University at Buffalo Alireza Jalouli/University at Buffalo Peijian Wang/University at Buffalo Christian Neureuter/University at Buffalo Hao Zeng/University at Buffalo Tim Thomay/University at Buffalo

We investigate the criteria of bandgaps opening in frequency or momentum, in both electromagnetism and condensed matter models with periodic modulation in time, showing Floquet crystals and time crystals are closely related.

Authors:Yang Yu/Cornell University Gennady Shvets/Cornell University

Breaking time-reversal or inversion symmetry are two ways of realizing a Weyl semimetal. We report that, in a plasmonic medium with Weyl point dispersion, the time-reversal broken realization is fundamentally more resilient against losses.

Authors:Kunal Shastri/Cornell University Francesco Monticone/Cornell University

We introduce a generalized class of arbitrarily sized/shaped particles that satisfy the Kerker zero backscattering condition for normal incidence for all incident polarizations. We prove that self-duality is a sufficient condition to achieve zero backscattering.

Authors:Nasim Mohammadi Estakhri/University of Pennsylvania Raphael Kastner/University of Pennsylvania Nader Engheta/University of Pennsylvania

We propose an Si-based optical vortex beam splitter consisting of topological edge state waveguides with C6 symmetry. The device can change the branching ratio of the propagate light in the range from 16% to 84%.

Authors:Sho Okada/Tokyo Institute of Technology Tomo Amemiya/Tokyo Institute of Technology Hibiki Kagami/Tokyo Institute of Technology Koichi Saito/Tokyo Institute of Technology Makoto Tanaka/Tokyo Institute of Technology Nobu Nishiyama/Tokyo Institute of Technology Xiao Hu/National Institute for Materials Science

We show that ghost surface waves, a special class of Dyakonov waves at the interface of a biaxial and an isotropic dielectric, can lead to exact frequency degeneracies in guided modes.

Authors:Emroz Khan/Purdue University Sanjay Debnath/Purdue University Evgenii Narimanov/Purdue University

We have fabricated and tested on-chip waveguides using amorphous photonic structures. Amorphous structures offer greater flexibility compared to photonic crystal for photonic device designs. Furthermore, we offer a general guideline for amorphous structures.

Authors:Murat Sarihan/University of California,Los Angeles Alperen Govdeli/Middle East Technical University Yildirim Batuhan Yilmaz/Middle East Technical University Mertcan Erdil/Middle East Technical University Mehmet Sirin Aras/University of California,Los Angeles Cenk Yanik/Sabanci University Chee Wei Wong/University of California,Los Angeles Serdar Kocaman/Middle East Technical University

We discuss the effects of the ENZ position of multilayer HMM substrates (alternating layers Ag and ITO) on the level of their coupling with quantum emitters.

Authors:Ekembu Tanyi/Oregon State University Jonathan Van Schenck/Oregon State University Gregory Giesbers/Oregon State University Oksana Ostroverkhova/Oregon State University Li-Jing Cheng/Oregon State University

Photonic glass provides angle-independent, spectrally selective scattering that can be used as structural colors. We show how the core-shell geometry of the particles can be used to improve the saturation of blue color.

Authors:Alexander Petrov/Hamburg University of Technology Guoliang Shang/Hamburg University of Technology Lukas Maiwald/Hamburg University of Technology Manfred Eich/Hamburg University of Technology

We consider the properties of dielectric topological photonic-crystal-based resonators featuring reflection-less in-plane light propagation.
We demonstrated that out-of-plane scattering is also suppressed due to the edge state localization near K and K' points away from the light line.

Authors:Mikhail Shalaev/Duke University Wiktor Walasik/Duke University Jiannan Gao/Duke University Natalia Litchinitser/Duke University

We demonstrate a reconfigurable all-dielectric metasurface comprising of concentric GST/high-index materials nanopillars. The dynamic interplay of dominant Mie resonance modes due to the real-time phase-transition of GST grants 2π phase agility with unprecedented efficiency.

Authors:Kirsten Masselink/Georgia Tech Sajjad Abdollahramezani/Georgia Tech Omid Hemmatyar/Georgia Tech Ali Adibi/Georgia Tech

We theoretically show how the Lorentz reciprocity can be broken via interaction of electron beams with electromagnetic waves in cylindrical waveguides. Salient features such as the operating frequency range and nonreciprocity’s strength are discussed.

Authors:Asma Fallah/University of Pennsylvania Yasaman Kiasat/University of Pennsylvania Mario Silveirinha/University of Lisbon Nader Engheta/University of Pennsylvania

We tune a metasuraface hologram by changing its surrounding medium to change the propagation phase experienced by the transmitted light from a nanostructure, which depends on the thickness and the transverse sizes.

Authors:Weiping Wan/Peking University Hang Feng/Peking University Qihuang gong/Peking University yan li/Peking University

We show that one can obtain a topological state in a photonic lattice by incorporating a defect and uniform amplification and absorption mechanism that satisfies a local broken parity-time symmetry condition.

Authors:Hamidreza Ramezani/University of Texas,Rio Grande Valley Fatemeh Mostafavi/University of Texas,Rio Grande Valley

Leveraging sharp toroidal resonances supported by an all-dielectric metasurface (MS) made of high-index phase-change material Sb$_2$S$_3$ nanopillars (NPs), we demonstrate tunable ultrahighly saturated structural color with unprecendted large color gamut.

Authors:Omid Hemmatyar/Georgia Institute of Technology Tyler Brown/Georgia Institute of Technology Ali Adibi/Georgia Institute of Technology

Here, we experimentally demonstrate full color generation by a Fano-resonant all-dielectric metasurface (MS) consisting of HfO$_2$ nanopillars (NPs), for the first time to our knowledge, designed by a novel deep learning approach named dimensionality reduction.

Authors:Omid Hemmatyar/Georgia Institute of Technology Sajjad AbdollahRamezani/Georgia Institute of Technology Yashar Kiarashinejad/Georgia Institute of Technology Mohammadreza Zandehshahvar/Georgia Institute of Technology Ali Adibi/Georgia Institute of Technology

Optical microscopy is an ideal tool to monitor neural activity in vivo. I will discuss how we use advanced concepts in optics to develop next-generation microscopy methods for imaging the brain at high spatiotemporal resolution.

Authors:Na Ji/University of California Berkeley

We use compressive sensing, optimization, and closed-loop control principles to create high speed microscopes for recording activity from neurons and synapses in the brains of model organisms.

Authors:Kaspar Podgorski/Howard Hughes Medical Institute

We demonstrate three-photon imaging of brain activity in awake mice, achieving 30 frames/s at 512x512 pixels per frame and 620x620 µm field-of-view (FOV) at 750 µm depth.

Authors:Bo Li/Cornell University chunyan wu/Cornell University Mengran Wang/Cornell University Kriti Charan/Cornell University Chris Xu/Cornell University

We demonstrate an ultrafast Multifocus 25-camera-array microscope (M25) for truly simultaneous 3D imaging of 25 focal planes of a living specimen. Customized for functional neural circuit imaging, our M25 prototype captures 130×130×50um3 volumes at >100Hz

Authors:Eduardo Hirata-Miyasaki/University of California Santa Cruz Gustav Pettersson/University of California Santa Cruz Khant Zaw/University of California Santa Cruz Demis John/UCSB Nanofabrication Facility Brian Thibeault/UCSB Nanofabrication Facility Brandon Lynch/University of California Santa Cruz Juliana Hernandez/University of California Santa Cruz Sara Abrahamsson/University of California Santa Cruz

We present methodological and conceptual advances in applying multiphoton light sculpting towards precise optogenetic probing of neural coding. Our approach highlights behavioral readout, manipulating physical parameters and in-situ evaluation towards illuminating the brain’s computational strategies.

Authors:Shy Shoham/NYU Langone Health Gilad Lerman/NYU Langone Health Jonathan Gill/NYU Langone Health Dmitry Rinberg/NYU Langone Health

I will present several deep learning based computational microscopy techniques including phase microscopy and imaging oximetry. Emphasis will be put on an uncertainty quantification framework for assessing the reliability of these techniques.

Authors:Lei Tian/Boston University Yujia Xue/Boston University Shiyi Cheng/Boston University Yunzhe Li/Boston University Ji Yi/Boston University

This talk shall briefly summarize the major research topics on artificial intelligence in medical imaging recently. It will also cover some research results produced in NVIDIA and how they have been applied to NVIDIA’s products.

Authors:Daguang Xu/NVIDIA Corporation

High-speed chemical imaging is achieved by combining femtosecond pulse stimulated Raman scattering with deep learning. Speed is improved by ~60 times with four sub-cellular organelles (lipid droplets, endoplasmic reticulum, nuclei, cytoplasm) classified in MiaPaCa2 cells.

Authors:Jing Zhang/Boston University Haonan Lin/Boston University Jian Zhao/Boston University Yuying Tan/Boston University Ji-Xin Cheng/Boston University

We propose a Deep Learning (DL) framework for reconstructing super-resolved images in structured illumination microscopy, which reduces the amount of raw data required for the reconstruction and allows real-time super resolution imaging

Authors:Doron Shterman/Technion - Israel Institute of Technology Gilad Feinberg/Technion - Israel Institute of Technology Shai Tsesses/Technion - Israel Institute of Technology yochai blau/Technion - Israel Institute of Technology Guy Bartal/Technion - Israel Institute of Technology

We present a deep learning-based framework for performing automatic screening of sickle cells using a smartphone-based microscope. We achieved 98% accuracy when blindly testing 96 human blood smear slides, including 32 with sickle cell disease.

Authors:Kevin de Haan/University of California Los Angeles Hatice Ceylan Koydemir/University of California Los Angeles Yair Rivenson/University of California Los Angeles Derek Tseng/University of California Los Angeles Elizabeth Van Dyne/University of California Los Angeles Lissette Bakic/University of California Los Angeles Doruk Karinca/University of California Los Angeles Kyle Liang/University of California Los Angeles Megha Ilango/University of California Los Angeles Esin Gumustekin/University of California Los Angeles Aydogan Ozcan/University of California Los Angeles

We demonstrate a deep learning-based 3D virtual refocusing framework for fluorescence microscopy, which extends the imaging depth-of-field by 20-fold and corrects various aberrations, all digitally performed after a 2D image of the sample is captured.

Authors:Yichen Wu/University of California Los Angeles Yair Rivenson/University of California Los Angeles Hongda Wang/University of California Los Angeles Yilin Luo/University of California Los Angeles Eyal Ben-David/University of California Los Angeles Laurent Bentolila/University of California Los Angeles Christian Pritz/Hebrew University of Jerusalem Aydogan Ozcan/University of California Los Angeles

TBD

Authors:Malgorzata Baranska/Jagiellonian University

Hyperspectral imagers can be deployed in a number of locations in the food supply chain. From laboratory studies of plant genomics, to drones measuring crop health in the field, to inline or end-of-line positioning in process facilities. In the quality assurance, the additional spectral and spatial information provided by hyperspectral imaging can be utilized by food processors to provide details of chemical and structural composition previously not discernible yielding value in several areas.


Authors:Alex Fong/TruTag Technologies Inc George Shu/HinaLea Imaging Barry McDonogh/TruTag Technologies Inc

Modern-day agriculture and food distribution across the world are complex and diverse. With increasing demands of food-water-land; push to conserve resources and minimize wastage; photonic tools are being explored to analyse these intricate dynamics.

Authors:Aparajita Bandyopadhyay/Indian Institute of Technology Delhi

QEPAS enables very compact detectors due to the small detection volume. Currently limitations originate from bulky control electronics, like lock-in amplifiers. We report on reducing size and energy of FPGA based devices and their application in methane detection.

Authors:Herve Tatenguem Fankem/Sacher Lasertechnik GmbH Amrita Devi Josnan/Sacher Lasertechnik GmbH Tobias Milde/Sacher Lasertechnik GmbH Morten Hoppe/Sacher Lasertechnik GmbH Joachim Sacher/Sacher Lasertechnik GmbH

Fluorinated hyper branched polymer based active microdisk was fabricated by ink-jet printing method. The carboxyl functional group of the polymer was used for the biotinylation of microdisk and then adsorption characteristics of avidin were evaluated.

Authors:Abdul Nasir/Kyushu University Yuya Mikami/Kyushu University Taku Takagishi/Kyushu University Rui Yatabe/Kyushu University Hiroaki Yoshioka/Kyushu University Nilesh J Vasa/Indian Institute of Technology Madras Yuji Oki/Kyushu University

We performed attoclock experiments on atomic and molecular hydrogen. For H we put an upper limit of 2 attoseconds on electron tunneling time. For H₂ we studied dependence of electron offset angle on molecular orientation.

Authors:U. Satya Sainadh/Griffith University Han Xu/Griffith University Xiaoshan Wang/Griffith University Atia Atia-Tul-Noor/Griffith University William Wallace/Griffith University Nicolas Douget/University of Central Florida Alexander Bray/Australian National University Igor Ivanov/Institute for Basic Sciences Klaus Bartschat/Drake University Anatoli Kheifets/Australian National University Robert Sang/Griffith University Igor Litvinyuk/Griffith University

We experimentally resolve the time delay of electron wave packets arising from one-photon transitions in the continuum. This allows us to determine and quantify the angular momentum dependence of the photoionization time delay.

Authors:Jaco Fuchs/ETH Zurich Nicolas Douguet/University of Central Florida Stefan Donsa/Vienna University of Technology Fernando Martin/Universidad Autónoma de Madrid Joachim Burgdörfer/Vienna University of Technology Luca Argenti/University of Central Florida Laura Cattaneo/ETH Zurich Ursula Keller/ETH Zurich

Control of electron recollision and molecular nonsequential double ionization via pulse shaping was obtained on ethane. A model based on sudden jump in driving frequency is found to be in excellent agreement with experimental results.

Authors:Shuai Li/Michigan State University Diego Sierra-Costa/Michigan State University Matthew Michie/Michigan State University Itzik Ben-Itzhak/J. R. Macdonald Laboratory Marcos Dantus/Michigan State University

We show novel effects in high harmonic generation arising from the quantum nature of light. These effects include multiple shifted combs of high harmonics, where each photon carries all the spectral information of the combs.

Authors:Alexey Gorlach/Technion Ofer Neufeld/Technion Nicholas Rivera/Massachusetts Institute of Technology Oren Cohen/Technion Ido Kaminer/Technion

We experimentally demonstrate that the transfer of photon linear momentum is a sub-cycle time-dependent process. This observation is explained by a semi-classical free-electron-model in a laser field, extended by parent-ion-interaction and time-dependent initial momentum shift.

Authors:Benjamin Willenberg/ETH Zurich Jochen Maurer/ETH Zurich Benedikt Mayer/ETH Zurich Ursula Keller/ETH Zurich

We demonstrate attosecond streaking with a parametric waveform synthesizer.
The characterization demonstrates the excellent pulse-to-pulse stability and versatile waveform
shaping at subcycle pulse durations, allowing for the direct generation of isolated
attosecond pulses.

Authors:Fabian Scheiba/Deutsches Elektronen-Synchrotron (DESY) Yudong Yang/Deutsches Elektronen-Synchrotron (DESY) Giulio Maria Rossi/Deutsches Elektronen-Synchrotron (DESY) Roland E. Mainz/Deutsches Elektronen-Synchrotron (DESY) Miguel Angel Silva-Toledo/Deutsches Elektronen-Synchrotron (DESY) Phillip D. Keathley/Massachusetts Institute of Technology (MIT) Giovanni Cirmi/Deutsches Elektronen-Synchrotron (DESY) Franz KÄRTNER/Deutsches Elektronen-Synchrotron (DESY)

Polarization of single-order circularly polarized high harmonic is characterized after the separation by a time-delay compensated monochromator. The ellipticity introduced by the anisotropy of the toroidal gratings in diffraction is evaluated.

Authors:Kengo Ito/Hokkaido University Eisuke Haraguchi/Hokkaido University Keisuke Kaneshima/Hokkaido University Taro Sekikawa/Hokkaido University

Noise and spectral stability of dispersive waves generated in an argon-filled hollow-core fiber pumped with 2.4 μm ultrafast pulses is presented. Long-term stability and pulse-to-pulse relative intensity noise of the strongest dispersive wave at 275 nm is shown.

Authors:ABUBAKAR ISA ADAMU/Technical University Of Denmark Md. Selim Habib/Florida Polytechnic University, FL-33805, USA Callum Smith/Technical University Of Denmark Jose Enrique Antonio-Lopez/University of Central Florida, Orlando, FL-32816, USA Peter Uhd Jepsen/Technical University Of Denmark Rodrigo Amezcua Correa/University of Central Florida, Orlando, FL-32816, USA Ole Bang/Technical University Of Denmark Christos Markos/Technical University Of Denmark

Molecular gas-filled hollow-core fibers are attractive for pulse compression of Yb lasers. Here, we show that rotational heating prevents efficient spectral broadening at high average powers and find that buffer-gas cooling can mitigate this effect.

Authors:Nrisimhamurty Madugula/University of Central Florida John Beetar/University of Central Florida Yangyang Liu/University of Central Florida Michael Chini/University of Central Florida

Air-filled kagomé-type photonic crystal fiber pumped by 40-fs pulses at 400 nm produces a spectrum with several nitrogen-related Raman bands that is broad enough to support transform-limited 7 fs pulses in the UV.

Authors:Jie Luan/Max Planck Institute for the Science of Light David Novoa/Max Planck Institute for the Science of Light Philip Russell/Max Planck Institute for the Science of Light

We demonstrate broadband wavelength up-conversion (240-320nm) based on a seeded four-wave mixing scheme in gas-filled stretched hollow-capillary fibers with 50% conversion efficiency. Our technique is scalable in energy from the nJ to mJ level

Authors:Federico Belli/Heriot-Watt University Athanasios Lekosiotis/Heriot-Watt University John Travers/Heriot-Watt University

We demonstrate efficient high-order harmonic generation in fused-silica chips fabricated by femtosecond laser micromachining. This work provides a route toward the miniaturization of HHG beamlines and the implementation of X-ray spectroscopy with attosecond temporal resolution.

Authors:Anna Ciriolo/IFN-CNR Rebeca Martínez Vázquez/IFN-CNR Valer Tosa/National Institute for Research and Development of Isotopic and Molecular Technologies Aldo Frezzotti/Politecnico di Milano Eugenio Cinquanta/IFN-CNR Gabriele Crippa/Politecnico di Milano Michele Devetta/IFN-CNR Roberto Osellame/IFN-CNR Salvatore Stagira/Politecnico di Milano Caterina Vozzi/IFN-CNR

We report on the generation and characterization of trains and isolated attosecond pulses at a repetition rate of 100 kHz. This system will be utilized for attosecond pump-probe spectroscopy studies with electron-ion coincidence detection.

Authors:Federico Furch/Max Born Institute Tobias Witting/Max Born Institute Mikhail Osolodkov/Max Born Institute Felix Schell/Max Born Institute Carmen Menoni/Colorado State University Claus P. Schulz/Max Born Institute Marc J. J. Vrakking/Max Born Institute

We generate high harmonics in polycrystalline and monocrystalline ZnSe with a high-power mid-IR optical parametric amplifier. By using its high photon flux and wavelength tunability, novel paths based on Van Hove singularities were observed.

Authors:Tsuneto Kanai/Max Planck Center for Attosecond Science Yeon Lee/Max Planck Center for Attosecond Science Dong Kim/Max Planck Center for Attosecond Science

This tutorial addresses design of tunable nanophotonic arrays, enabling dynamic, active control of the properties of light – amplitude, phase, wavevector, wavelength and polarization – opening new applications such as optical beam steering, focusing and wavefront engineering.
Harry Atwater is the Howard Hughes Professor of Applied Physics and Materials Science at the California Institute of Technology. His scientific interests span nanophotonic light-matter interactions and solar energy conversion. Atwater was an early pioneer in nanophotonics and plasmonics; he gave the name to the field of plasmonics in 2001.

Authors:Harry Atwater/California Institute of Technology

We demonstrate an electro-optically reconfigurable hybrid metasurface platform formed by integration of plasmonic nanostructures with phase-change materials to effectively modulate the incident light over a broad range of wavelengths in the telecommunication window.

Authors:Omid Hemmatyar/Georgia Institute of Technology Sajjad Abdollahramezani/Georgia Institute of Technology Hossein Taghinejad/Georgia Institute of Technology Ali Adibi/Georgia Institute of Technology

We propose employing a magneto-optical nanoantenna that allows transmitted optical beam steering. The proposed nanoantenna produces a few degrees spanning of the optical beam propagation direction, controlled by the strength of the external magnetic field.

Authors:Ihar Faniayeu/University of Gothenburg Alexander Dmitriev/University of Gothenburg

Liquid crystal based metasurface would be a potential candidate in the tunable planar nanophotonics devices. In this work, the tunable metasurfaces with the functions of beam steering, color pixels, and resonance bandwidth are presented.

Authors:Jhen-Hong Yang/National Chiao Tung University, Taiwan Kuo-Ping Chen/National Chiao Tung University, Taiwan

We present an electrically tunable metasurface as an optical phased array antenna by employing a deep learning approach to intelligently design hybrid phasechange/ plasmonic materials-based meta-atoms spatially adding 0 and p phase-shift while minimize reflectance variation.

Authors:Sajjad AbdollahRamezani/Georgia Institute of Technology Yashar Kiarashinejad/Georgia Institute of Technology Omid Hemmatyar/Georgia Institute of Technology Mohammadreza Zandehshahvar/Georgia Institute of Technology Ali Adibi/Georgia Institute of Technology

We report on the first demonstration of topological Haldane lattice, also known as quantum anomalous Hall effect, in a photonic setting using active microring structures.

Authors:Yuzhou Liu/University of Southern California Pawel Jung/University of Central Florida, CREOL Midya Parto/University of Central Florida, CREOL William Hayenga/University of Southern California Demetrios Christodoulides/University of Central Florida, CREOL Mercedeh Khajavikhan/University of Southern California

<div style="direction: ltr;">We demonstrate photonic structures, which support topological edge-states propagating in 3D. The robust edge-states propagate in a screw motion in a 3D topological insulator with two spatial dimensions and one synthetic dimension.</div>

Authors:Eran Lustig/Technion Israel Institute of Technology Lukas Maczewsky/Institut für Physik, Universität Rostock Tobias Biesenthal/Institut für Physik, Universität Rostock Zhaoju Yang/Technion Israel Institute of Technology Yonatan Plotnik/Technion Israel Institute of Technology Alexander Szameit/Institut für Physik, Universität Rostock Mordechai Segev/Technion Israel Institute of Technology

We observe topological phenomena in coupled, time-multiplexed optical resonators by mapping topologically nontrivial energy spectra to the network’s loss. We detect topological edge states and reconstruct the band structures of noninteracting tight-binding Hamiltonians.

Authors:Christian Leefmans/California Institute of Technology Avik Dutt/Stanford University James Williams/Northwestern University Luqi Yuan/Shanghai Jiao Tong University Shanhui Fan/Stanford University Alireza Marandi/California Institute of Technology

We report the generation of space-time non-separable toroidal pulses of complex topological structure. Such pulses, a formation of singularities propagating in free space, are ideal probes for toroidal and anapole modes in matter.

Authors:Apostolos Zdagkas/ORC, University of Southampton Yaonan Hou/ORC, University of Southampton Vassili Savinov/ORC, University of Southampton Huifang Zhang/ORC, University of Southampton Oleksandr Buchnev/ORC, University of Southampton Nikitas Papasimakis/ORC, University of Southampton Nikolay Zheludev/ORC, University of Southampton

We demonstrate a non-trivial Berry phase that originates from braiding topological defects in a photonic waveguide array. The non-zero Berry phase implies that braiding operations involving the defects are non-Abelian.

Authors:Jiho Noh/Pennsylvania State University Thomas Schuster/University of California, Berkeley Thomas Iadecola/Iowa State University Sheng Huang/University of Pittsburgh Mohan Wang/University of Pittsburgh Kevin Chen/University of Pittsburgh Claudio Chamon/Boston University Mikael Rechtsman/Pennsylvania State University

We demonstrate universal conversion of topological singularities in momentum-space (Dirac points) to topological defects in real-space (optical vortices). We show that this conversion persists even in stretched lattices, topologically protected by a quantized Berry phase.

Authors:Xiuying Liu/Teda College of Nankai University Shiqi Xia/Teda College of Nankai University Ema Jajtić/University of Zagreb Daohong song/Teda College of Nankai University Denghui Li/Teda College of Nankai University Liqin Tang/Teda College of Nankai University Daniel Leykam/Institute for Basic Science Jingjun Xu/Teda College of Nankai University Hrvoje Buljan/University of Zagreb Zhigang Chen/Teda College of Nankai University

Non-Hermiticity, induced by anisotropic coupling, makes the mode spectrum highly sensitive to the existence of boundaries. We demonstrate and exploit this behaviour experimentally in a photonic lattice to construct a light funnel.

Authors:Mark Kremer/University of Rostock Sebastian Weidemann/University of Rostock Tobias Helbig/Julius-Maximilians-University Tobias Hofmann/Julius-Maximilians-University Alexander Stegmaier/Julius-Maximilians-University Martin Greiter/Julius-Maximilians-University Ronny Thomale/Julius-Maximilians-University Alexander Szameit/University of Rostock

Progress on single-shot femtosecond laser ablation of a variety of monolayer two-dimensional materials is reported. Various mechanisms leading towards to their dielectric breakdown are experimentally explored and numerically modeled.

Authors:Tsing-Hua Her/Univ of North Carolina at Charlotte Jole Solomon/Univ of North Carolina at Charlotte Sih-Hua chen/National Chiao Tung University Hsin-Yu Yao/National Tsing Hua University Li-Syuan Lu/National Chiao Tung University Joseph Obeid/Univ of North Carolina at Charlotte Yu-Chen Wu/National Chiao Tung University Sabeeh Ahmad/Univ of North Carolina at Charlotte Wen-Hao Chang/National Chiao Tung University Chih Wei Luo/National Chiao Tung University

Polarization-dependent nonlinear absorption in bulk ReS₂ is measured by Intensity-scan. Absorption under high peak power shows a transition from saturable absorption to reverse saturable absorption when rotating the polarization with respect to the b-axis.

Authors:Yongjian Zhou/University of Texas at Austin Xianghai Meng/University of Texas at Austin Yaguo Wang/University of Texas at Austin

We demonstrate long range Hall like propagation features in a polariton fluid formed via coupling WS₂ excitons to Bloch surface waves at room temperatures.

Authors:Mandeep Khatoniar/City University of New York Biswanath Chakraborty/City College of New York Nicholas Yama/University of Hawaii Vinod Menon/City University of New York

The periodic functionalization of graphene has been achieved by pulsed laser substrate patterning. Laser-induced ripples formed at Si/SiO₂ interface periodically modulate the reactivity of the monolayer graphene via modulation of the doping density

Authors:Inam Mirza/HiLASE Centre, Institute of Physics of the Czech Academy of Sciences Karolina Drogowska/J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences Álvaro Rodriguez/J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences Petr Kovaríček/J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences Juraj Sládek/HiLASE Centre, Institute of Physics of the Czech Academy of Sciences Thibault Derrien/HiLASE Centre, Institute of Physics of the Czech Academy of Sciences Mindaugas Gedvilas/Centre for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Gediminas Račiukaitis/Centre for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Nadezhda Bulgakova/HiLASE Centre, Institute of Physics of the Czech Academy of Sciences Martin Kalbáč/J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences

Polymeric microcavities (Q~10⁴) doped with graphene oxide were fabricated. No Q-factor decrease was noticed upon doping, albeit smaller number of modes was observed. Also, graphene oxide layers were deposited on microcavities by laser-induced forward transfer.

Authors:Cleber Mendonca/USP - Instituto de Fisica de Sao Carlos Nathalia Tomazio/USP - Instituto de Fisica de Sao Carlos Kelly Paula/USP - Instituto de Fisica de Sao Carlos

Here, we studied the intriguing optical properties of WS₂ quantum dots by various time-resolved spectroscopic techniques to get a comprehensive understanding of spectral and dynamical characteristics, specifically, we show long-lived ~ 95 ps trap-state emission.

Authors:RIYANKA KARMAKAR/Indian Institute of Science Education and Research Bhopal Adarsh K V/Indian Institute of Science Education and Research Bhopal

The contrast mechanism of infrared photoinduced force microscopy (IR-PiFM) for recording vibrational resonances is experimentally investigated. We show that spectroscopic contrast in IR-PiFM is mediated by opto-mechanical damping of the cantilever oscillation. © 2020 The Author(s)

Authors:Mohammad Almajhadi/University of California Irvine Syed Mohammad Ashab Uddin/University of California Irvine H. Kumar Wickramasinghe/University of California Irvine

A silicon photonics integrated opto-electronic circulator for radio over fiber links is proposed and experimentally demonstrated. The device shows an isolation between optical ports above 20 dB over the 0-20 GHz range.

Authors:Sergio Pinna/University of California Santa Barbara Fabrizio Gambini/University of California Santa Barbara Jonathan Klamkin/University of California Santa Barbara

We propose a dispersive phase filter design suitable for compact integration using waveguide Bragg gratings in silicon. On-chip 2x pulse repetition-rate multiplication of a 10-GHz pulse train by Talbot effect is experimentally demonstrated using this design.

Authors:Saket Kaushal/Institut National de la Recherche Scientifique Jose Azana/Institut National de la Recherche Scientifique

Using a novel suppressed carrier phase modulation scheme, which increases RF gain for constant on-chip optical power, we demonstrate a microwave photonic filter with three independent passbands, low RF loss (-5dB) and deep out-of-band rejection.

Authors:Matthew Garrett/Instute of Photonics and Optical Sciences (IPOS) Yang Liu/Instute of Photonics and Optical Sciences (IPOS) Pan Ma/Laser Physics Centre Duk-Yong Choi/Laser Physics Centre Stephen Madden/Laser Physics Centre Benjamin Eggleton/Instute of Photonics and Optical Sciences (IPOS)

Demonstration of silicon integrated linear filter, comprised of tunable weights, implemented as the matched filter of a microwave photonic canceller. Achieving 34 dB of weighting and 20 dB of cancellation over 6 GHz operating range.

Authors:Eric Blow/Princeton University Chaoran Huang/Princeton University Zheng Liu/Princeton University Samuel Markoff/Princeton University Paul Prucnal/Princeton University

The first nanophotonic near-field imager is reported that optically processes the received microwave signals to form a 121-pixel image. It achieves 4.8° spatial resolution and is significantly smaller and more power efficient than the all-electrical counterparts.

Authors:Farshid Ashtiani/University of Pennsylvania Firooz Aflatouni/University of Pennsylvania

We present a frequency compensated uni-traveling-carrier photoreceiver using an LC resonance technique for 100 Gbaud intensity-modulation direct-detection communications. Then, the great advantage for the frequency response and the bit error rate will be discussed.

Authors:Toshimasa Umezawa/National Inst of Information & Comm Tech Atsushi Kanno/National Inst of Information & Comm Tech Atsushi Matsumoto/National Inst of Information & Comm Tech Kouichi Akahane/National Inst of Information & Comm Tech Naokatsu Yamamoto/National Inst of Information & Comm Tech Tetsuya Kawanishi/Waseda University

A microwave Doppler-frequency-shift (DFS) measurement system based on an integrated silicon six-port receiver is proposed. A DFS measurement over a range ±100 kHz with a measurement error lower than ±6 Hz is realized.

Authors:Zhenzhou Tang/Nanjing Univ Aeronautics & Astronautics Jing Zhang/ghent university Zhengqian He/Nanjing Univ Aeronautics & Astronautics Shilong Pan/Nanjing Univ Aeronautics & Astronautics Gunther Roelkens/ghent university Dries Van Thourhout/ghent university

Generation of mid-infrared combs (3.3 micron band) with GigaHertz line spacing is demonstrated by interleaved difference-frequency-generation. The method, applied to a 22 GHz repetition-rate microcomb, is useful for spectral densification of sparse microcomb spectra.

Authors:Chengying Bao/Caltech Zhiquan Yuan/Caltech Heming Wang/Caltech LUE WU/Caltech Boqiang Shen/Caltech Keeyoon Sung/JPL Stephanie Leifer/JPL Qiang Lin/University of Rochester Kerry Vahala/Caltech

We demonstrate for the first time the compact optical dual-comb source based on high-Q integrated microresonators pumped by semiconductor Fabry-Pérot laser diodes. This demonstration provides a route to fully integrated spectrometer of high-volume fabrication.

Authors:Alexander Gorodnitskiy/Russian Quantum Center Andrey Voloshin/Russian Quantum Center Sergey Koptyaev/Samsung R&D Institute Russia Maxim Ryabko/Samsung R&D Institute Russia Sofya Agafonova/Russian Quantum Center Igor Bilenko/Russian Quantum Center Stas Polonsky/Samsung R&D Institute Russia

We generate a dissipative Kerr-microresonator soliton comb pumped by a MHz linewidth distributed feedback laser. The phase noise of a soliton comb mode and the timing jitter of the soliton comb are also measured.

Authors:Kenji Nishimoto/Tokushima University Kaoru Minoshima/University of Electro-Communications Takeshi Yasui/Tokushima University Naoya Kuse/Tokushima University

We demonstrate a chip-scale 30 GHz single soliton microcomb based on DFB laser locked to a Si₃N₄ microresonator. We propose novel theoretical and experimental approaches to explain dynamics of self-injection locking, modified by Kerr nonlinearity.

Authors:Andrey Voloshin/Russian Quantum Center Junqiu Liu/Swiss Federal Institute of Technology Lausanne (EPFL) Nikita Kondratiev/Russian Quantum Center Grigory Lihachev/Swiss Federal Institute of Technology Lausanne (EPFL) Tobias Kippenberg/Swiss Federal Institute of Technology Lausanne (EPFL) Igor Bilenko/Russian Quantum Center

We study broadband Si$_3$N$_4$ microresonator frequency combs aimed at addressing atomic transitions in the visible. Using an air-clad system, we show how post-process trimming enables tuning of the dispersive wave position to wavelengths below 700~nm.

Authors:Gregory Moille/National Institute of Standards and Technology Xiyuan Lu/National Institute of Standards and Technology Ashutosh Rao/National Institute of Standards and Technology Daron Westly/National Institute of Standards and Technology Kartik Srinivasan/National Institute of Standards and Technology

We measure a record-low threshold power of 84 μW for parametric oscillation using resonators with intrinsic Q of 31.8±4.4 million and demonstrate a broadband single soliton comb spectrum spanning 1097 nm-2040 nm. The resonator compact profile is designed to minimize higher order modes excitation.

Authors:Xingchen Ji/Columbia University Jae Jang/Columbia University Utsav Dave/Columbia University Chaitanya Joshi/Columbia University Mateus Corato-Zanarella/Columbia University Alexander Gaeta/Columbia University Michal Lipson/Columbia University

A record Q-factor of 1.1 billion is demonstrated in on-chip silica whispering-gallery resonators. Using the devices, sub-milliwatt parametric oscillation threshold is measured in 9 GHz free-spectral-range devices.

Authors:LUE WU/California Institute of Technology Heming Wang/California Institute of Technology Qifan Yang/California Institute of Technology maodong gao/California Institute of Technology Qing-Xin Ji/California Institute of Technology Boqiang Shen/California Institute of Technology Chengying Bao/California Institute of Technology Kerry Vahala/California Institute of Technology

In this tutorial, we review cognitive management and performance monitoring methods based on machine learning for addressing important challenges such as quality of transmission estimation, performance prediction and failure detection in coherent optical networks.
Christine Tremblay joined the École de technologie supérieure as Professor in 2004 after 14 years in the photonics industry. Founder and Head of the Network Technology Lab, her team pioneered the research in filterless optical networking. Her research interests include performance monitoring and machine learning for optical networking applications.

Authors:Christine Tremblay/École de technologie supérieure

A simple real-time monitoring algorithm for the impact of cascaded WSSs in elastic optical networks, which exploits the information available in a digital coherent receiver, is proposed and demonstrated through both numerical simulations and experiments.

Authors:Dario Pilori/Politecnico di Torino Antonino Nespola/LINKS Foundation Fabrizio Forghieri/Cisco Photonics Italy Stefano Piciaccia/Cisco Photonics Italy Gabriella Bosco/Politecnico di Torino

We experimentally demonstrate improvement of the worst-case information rate using the New Spatially Balanced (NSB) signaling recently proposed for PDL mitigation. NSB-coded and dual-polarization QPSK formats are compared over a multi-span link with inline PDL.

Authors:Arnaud Dumenil/Nokia Bell Labs Elie Awwad/Nokia Bell Labs Cyril Measson/Nokia Bell Labs Dylan Le Gac/Nokia Bell Labs

Many technological challenges have to be overcome before a cost and energy efficient system based on SDM can be realized. In this talk I will discuss both recent efforts and challenges in making SDM practical.

Authors:Werner Klaus/NICT

We derive fundamental bandwidth limits on achromatic optical metalenses, regardless of their implementation. Specifically, we discuss the product between achievable time delay and bandwidth, and apply well-established bounds on this product to a general focusing system.

Authors:Federico Presutti/Cornell University Francesco Monticone/Cornell University

In this work, we design multifunctional nanophotonic devices with drastically switchable properties upon simple mechanical transformations. Inverse design for photonic and mechanical metamaterials can be combined to simultaneously optimize custom multifunctionality in both domains.

Authors:Philip Camayd-Munoz/California Institute of Tech Gregory Roberts/California Institute of Tech Conner Ballew/California Institute of Tech Max Debbas/California Institute of Tech Andrei Faraon/California Institute of Tech

We present a new type of achromatic metalenses consisting of inversely designed random-shaped meta-atoms. The inverse design algorithm makes the designs not limited to human cognitive capabilities.

Authors:Xiaojie Zhang/Penn State University Haiyang Huang/Penn State University Xuexue Guo/Penn State University xingjie ni/Penn State University

We develop an inverse design approach to optimize array architectures of reconfigurable metasurfaces and report dramatically improved beam steering performances with non-ideal antenna components. The versatility is enhanced by enabling continuous steering up to 70°.

Authors:Prachi Thureja/California Institute of Technology Ghazaleh Shirmanesh/California Institute of Technology Katherine Fountaine/Northrop Grumman NG Next Ruzan Sokhoyan/California Institute of Technology Meir Grajower/California Institute of Technology Harry Atwater/California Institute of Technology

Complex “wavy” surfaces cannot be easily fabricated, frustrating the design and implementation of sophisticated diffractive optics. We will discuss a simple but powerful approach that provides surfaces containing an arbitrary number of specified spatial frequencies.

Authors:David Norris/ETH Zurich

We numerically demonstrate state-of-the-art beam steering metasurfaces via inverse design, which show tunable steering angles ranging from 12° to 144° and switching efficiencies above 80%.

Authors:Haejun Chung/Yale University Owen Miller/Yale University

We report detection and characterization of wavelength-scale objects with subwavelength resolution by combining diffractive imaging and machine learning. The technique clarifies the information channels in the diffraction imaging and provides insight into machine learning processes.

Authors:Abantika Ghosh/University of Massachusetts Lowell Diane Roth/King's College London Luke Nicholls/King's College London Anatoly Zayats/King's College London Viktor Podolskiy/University of Massachusetts Lowell

We report a 20W, 2.0mJ, 10kHz deep-ultraviolet laser at 258nm with a pulse duration of 665fs. To the best of our knowledge, this is the highest-power sub-ps 258nm solid-state laser reported to date.

Authors:Kun Liu/Nanyang Technological University Shizhen Qu/Nanyang Technological University Hao Li/Singapore Institute of Manufacturing Technology Qijie Wang/Nanyang Technological University Ying Zhang/Singapore Institute of Manufacturing Technology

The fifth harmonic (211 nm) of a pulsed, joule-class Nd:YLF laser has been generated with efficiency up to 30% in BBO, CLBO, and ADP crystals. Nonlinear absorption was demonstrated to be a major limiting factor.

Authors:Ildar Begishev/University of Rochester Vladimir Ivanov/University of Nevada Siddharth Patankar/Lawrence Livermore National Laboratory Philip Datte/Lawrence Livermore National Laboratory Steven Yang/Lawrence Livermore National Laboratory Jonathan Zuegel/University of Rochester Jake Bromage/University of Rochester

Abstract: We present the new drive laser system for the photo-injector of the LCLS-II XFEL at SLAC, including the first commissioning results and challenges encountered due to high power, high repetition rate ultraviolet laser operation.

Authors:Sasha Gilevich/SLAC National Accelerator Lab Shawn Alverson/SLAC National Accelerator Lab Sergio Carbajo/SLAC National Accelerator Lab Stefan Droste/SLAC National Accelerator Lab Steve Edstrom/SLAC National Accelerator Lab Alan Fry/SLAC National Accelerator Lab Michael Greenberg/SLAC National Accelerator Lab Randy Lemons/SLAC National Accelerator Lab Alan Miahnahri/SLAC National Accelerator Lab Wayne Polzin/SLAC National Accelerator Lab Sharon Vetter/SLAC National Accelerator Lab Feng Zhou/SLAC National Accelerator Lab

We present a cryogenic Yb:YLF regenerative amplifier which can reach 70 W average power and 20 mJ output energy at 3.5 kHz operation. The output beam quality factor is better than 1.05 in both axes.

Authors:Mikhail Pergament/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Umit Demirbas/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Huseyin Cankaya/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Yi hua/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Jelto Thesinga/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Franz KÄRTNER/Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY

We present a new pump geometry for compact thin disk lasers. Multi-pass pumping without
external pump optics is realized with a uniquely coated wedged laser medium. CW output
powers of 700 W are achieved.

Authors:Thomas Dekorsy/German Aerospace Center Benjamin Ewers/German Aerospace Center Raoul-Amadeus Lorbeer/German Aerospace Center Alexander Fischer/German Aerospace Center Jochen Speiser/German Aerospace Center

We report a closed-cycle cryogenically-cooled diode-end-pumped continuous-wave Nd:YAG laser operating at 946-nm, generating 113-W of output power (pump power limited) with a slope and an optical-to-optical conversion efficiency of 80% and 76%, respectively.

Authors:Gholamreza Shayeganrad/University of Southampton Silvia Cante/University of Southampton J. Pelegrin Mosquera/Institute of Cryogenics, University of Southampton Wendell Bailey/Institute of Cryogenics, University of Southampton Jacob Mackenzie/University of Southampton

We demonstrate that the combination of Ytterbium doped-fiber and bulk crystals amplifiers, in a Master Oscillator Power Amplifier configuration (MOPA) allows obtaining 3.6 mJ, 15 ns, single-frequency pulses and 5 kHz repetition rate.

Authors:Thomas Hamoudi/ONERA Xavier Délen/Laboratoire Charles Fabry Jean-Baptiste Dherbecourt/ONERA Antoine Godard/ONERA Jean-Michel Melkonian/ONERA Myriam Raybaut/ONERA Patrick Georges/Laboratoire Charles Fabry

We report nonlinear pulse compression of 1.2-ps, 2-mJ pulses. For spectral broadening, we use a Kr-filled Herriott-type cell with 22-roundtrips. After a chirped-mirror compressor, we measure 30-fs pulses, 80% transmission and an M² of 1.5x1.7.

Authors:Prannay Balla/Deutsches Elektronen-Synchrotron DESY Ammar Bin Wahid/Deutsches Elektronen-Synchrotron DESY Ivan Sytcevich/Lund University chen Guo/Lund University Arthur Schönberg/Deutsches Elektronen-Synchrotron DESY Anne-Lise Viotti/Lund University Laura Silletti/Deutsches Elektronen-Synchrotron DESY Andrea Cartella/Universität Hamburg Skirmantas Alisauskas/Deutsches Elektronen-Synchrotron DESY Hamed Tavakol/Deutsches Elektronen-Synchrotron DESY Uwe Grosse-Wortmann/Deutsches Elektronen-Synchrotron DESY Marcus Seidel/Deutsches Elektronen-Synchrotron DESY Bastian Manschwetus/Deutsches Elektronen-Synchrotron DESY Tino Lang/Deutsches Elektronen-Synchrotron DESY Francesca Calegari/Deutsches Elektronen-Synchrotron DESY Arnaud Couairon/Institut Polytechnique de Paris Anne L’Huillier/Lund University Cord L. Arnold/Lund University Ingmar Hartl/Deutsches Elektronen-Synchrotron DESY Christoph Heyl/Deutsches Elektronen-Synchrotron DESY

In this talk, we will provide a detailed account regarding the design rationales of different essential components of a photonic chip-based sensing system: the sensing element, the light source, and the light analyzer or spectrometer.

Authors:Derek Kita/Massachusetts Institute of Technology Qingyang Du/Massachusetts Institute of Technology Jerome Michon/Massachusetts Institute of Technology Tian Gu/Massachusetts Institute of Technology Zhengqian Luo/Xiamen University Steven Johnson/Massachusetts Institute of Technology Juejun Hu/Massachusetts Institute of Technology

We demonstrate 5 dB of net gain at 1558 nm in a 6.7 cm long erbium-doped tellurium-oxide-coated silicon nitride waveguide, in a process compatible with silicon nitride photonic integrated circuits.

Authors:Henry Frankis/McMaster University Hamidu M. Mbonde/McMaster University Dawson Bonneville/McMaster University Chenglin Zhang/McMaster University Richard Mateman/LioniX International BV Arne Leinse/LioniX International BV Jonathan Bradley/McMaster University

We repeatedly pole and unpole a lithium niobate thin film second harmonic generator while monitoring the switching of the optical output. Increasing asymmetry in the poling waveform results in increasing optical extinction ratio.

Authors:Jonathan Nagy/Ohio State University Karan Prabhakar/Ohio State University Ronald Reano/Ohio State University

We demonstrate a laser annealing technique capable of compensating for parameter and fabrication non-uniformity in complex silicon photonic devices. The technique does not compromise device performance and can be used for trimming at wafer level

Authors:Vera Biryukova/University of Glasgow Charalambos Klitis/University of Glasgow Marc Sorel/University of Glasgow

A new material deposition method to pattern 2D structures with spatial thickness variation using single fixed shadow mask is demonstrated. The method is applied to fabricate multispectral reflective color filter arrays of high customizability.

Authors:Xinhao Li/Massachusetts Institute of Technology Zheng Jie Tan/Massachusetts Institute of Technology Nicholas Fang/Massachusetts Institute of Technology

Utilizing distinct features in the leaky region of k-space as ‘modal fingerprints’, we demonstrate resonant mode identification in a photonic crystal nanobeam via infrared camera measurements with a ~19dB detection SNR improvement over transmission measurements.

Authors:Francis Afzal/Vanderbilt University Sharon Weiss/Vanderbilt University Joshua Petrin/Vanderbilt University

We introduce a novel interferometric method for fast, broadband and microscopic phase characterization, based on common-path configuration. The method can be implemented by adding a simple optical relay to connect conventional microscope and imaging spectrometer.

Authors:Lior Michaeli/Tel-Aviv University Danielle Ben Haim/Tel-Aviv University Haim Suchowski/Tel-Aviv University Tal Ellenbogen/Tel-Aviv University

We present an overview of the science and applications of physical sitations in which the dielectric permittivity, and consequently the refractive index, has a value close to zero.
Robert Boyd was born in Buffalo, New York, USA. He received a BS degree in physics from MIT and a PhD in Physics from the University of California at Berkeley. He joined the faculty of the University of Rochester in 1977, where he is now a full professor. In 2010 he took in addition a faculty position at the University of Ottawa in Canada. His research involves but classical and quantum aspects of Nonlinear Optics. He is the recipient of the OSA Townes award and the APS Schawlow Award and the Isakson Award. He is a fellow of OSA, APS, SPIE, IEEE and AAAS. He is a fellow of the Royal Society of Canada and a corresponding member of the Heidelberg Academy.

Authors:Robert Boyd/University of Ottawa

Switching forward-to-backward linear scattering of nanoantennas is a process of major importance. Here, we demonstrate the first nonlinear switching of forward to backward second harmonic generation, via engineering the nonlinear-tensors of the (110)-GaAs nanoantennas.

Authors:Lei Xu/University of New South Wales Saerens Grégoire/ETH Zurich Mariia Timofeeva/ETH Zurich Daria Smirnova/Australian National University Irina Volkovskaya/Russian Academy of Sciences Mykhaylo Lysevych/Australian National University Rocio Camacho/Australian National University Marcus Cai/Australian National University Khosro Zangeneh/Australian National University Lujun Huang/University of New South Wales Fouad Karouta/Australian National University Hoe Tan/Australian National University Chennupati Jagadish/Australian National University Andrey Miroshnichenko/University of New South Wales Rachel Grange/ETH Zurich Dragomir Neshev/Australian National University Mohsen Rahmani/Australian National University

We demonstrate millisecond-scale on-axis signal suppression using filament air plasmas formed by unaltered Gaussian beams with implications for background/continuum rejection for remote sensing applications.

Authors:Patrick Skrodzki/University of Michigan, Ann Arbor Lauren Finney/University of Michigan, Ann Arbor Milos Burger/University of Michigan, Ann Arbor John Nees/University of Michigan, Ann Arbor Igor Jovanovic/University of Michigan, Ann Arbor

We present how to engineer nonlinear optical process with a wide freedom, by arbitrarily manipulating relative phases among relevant electromagnetic fields. We report engineered generation of 1^st order stimulated Raman scattering with near 50% quantum efficiency.

Authors:Weiyong Liu/University of Electro-Communications Chiaki Ohae/University of Electro-Communications Jian Zheng/University of Electro-Communications Soma Tahara/University of Electro-Communications Masaru Suzuki/University of Electro-Communications Kaoru Minoshima/University of Electro-Communications Masayuki Katsuragawa/University of Electro-Communications

We present an amorphous silicon material having a record-high continuous-wave L-band conversion efficiency of -14.7 dB. The material is stable over 12 hours of 23 dBm continuous-wave C-band pumping.

Authors:Peter Girouard/DTU Fotonik Lars Frandsen/DTU Fotonik Michael Galili/DTU Fotonik Leif K. Oxenløwe/DTU Fotonik

Through the utilization of resonant dielectric metasurfaces governed by bound states in the continuum, we demonstrate a strong increase in the second-harmonic generation in WS₂ monolayers by a factor exceeding 700.

Authors:Nils Bernhardt/University of Technology Sydney Kirill Koshelev/Australian National University Simon White/University of Technology Sydney Kelvin Meng/University of Technology Sydney Johannes Fröch/University of Technology Sydney Trong Tran/University of Technology Sydney Sejeong Kim/University of Technology Sydney Duk-Yong Choi/Australian National University Yuri Kivshar/Australian National University Alexander Solntsev/University of Technology Sydney

We demonstrate selectively enhanced dipoles of an InAs quantum dot embedded in a nanophotonic waveguide, thereby forming optical cycling transitions, a basic tool for scalable spin-multiphoton entanglement generation.

Authors:Martin Appel/University of Copenhagen Alexey Tiranov/University of Copenhagen Konstantin Tiurev/University of Copenhagen Alisa Javadi/University of Basel Ying Wang/University of Copenhagen Leonardo Midolo/University of Copenhagen Svend Scholz/University of Bochum Andreas Wieck/University of Bochum Arne Ludwig/University of Bochum Richard Warburton/University of Basel Peter Lodahl/University of Copenhagen

Using ion implantation, on-chip photonic fabrication and heterogeneous integration, we demonstrate a solid-state interface between rare earth ions and telecomm photons in various designs. The platforms enable study of collective and coherent light-atom interactions on chip.

Authors:Mahdi Hosseini/Purdue University

We present an epitaxial Er³⁺:Y₂O₃/silicon material platform for scalable quantum photonic devices. We discuss a system integrating suspended Er³⁺:Y₂O₃ membranes with a fiber Fabry-Perot cavity for coherent spectroscopy enabling quantum memory and transduction.

Authors:Yizhong Huang/The University of Chicago Manish Singh/The University of Chicago Rikuto Fukumori/The University of Chicago Natasha Tomm/University of Basel Christina Wicker/The University of Chicago Abhinav Prakash/The University of Chicago Tijana Rajh/Argonne National Laboratory Richard Warburton/University of Basel Supratik Guha/The University of Chicago Tian Zhong/The University of Chicago

We demonstrate the resonant excitation of a so-called dark exciton state in a quantum dot with a readout scheme based on the resonance fluorescence of the correlated bright exciton.

Authors:Markus Müller/Joint Quantum Institute, National Institute of Standards and Technology and University of Maryland Bin Cao/Joint Quantum Institute, National Institute of Standards and Technology and University of Maryland Glenn Solomon/National Institute of Standards and Technology

Coherent scattering by a quantum dot in a nano-cavity with high Purcell factor is demonstrated. Major deviations from atom-like behaviour are observed due to phonon coupling that is completely insensitive to excitation conditions.

Authors:Alistair Brash/University of Sheffield Jake Iles-Smith/University of Sheffield Catherine Phillips/University of Sheffield John O'Hara/University of Sheffield Benjamin Royall/University of Sheffield Luke Wilson/University of Sheffield Maurice Skolnick/University of Sheffield A. Mark Fox/University of Sheffield Dara McCutcheon/University of Bristol Edmund Clarke/University of Sheffield Jesper Mørk/Technical University of Denmark Ahsan Nazir/University of Manchester

I will present our work on developing building blocks for telecom-wavelength quantum networks using individually addressed Erbium ions in crystalline hosts. Leveraging strong Purcell enhancement to overcome the intrinsically low photon emission rate, we have demonstrated single photon emission, high-fidelity single-shot spin readout and coherent manipulation. Improvements including new host materials and device architectures will be discussed.

Authors:Jeff Thompson/Princeton University Songtao Chen/Princeton University

By adopting a GaAs based semiconductor saturable absorber mirror (SESAM), we have demonstrated a ~3.5 μm passively Q-switched Er³⁺:ZBLAN fiber laser. The recorded highest repetition rate is 58.71 kHz with a pulse width of 2.4 μs and pulse energy of ~1 μJ. The results prove that the GaAs based SESAM has the capacity to extend the operation wavelength to mid-infrared region beyond 3.0 μm.

Authors:Jun Liu/Shenzhen University Zhixiang Deng/Shenzhen University Yu Chen/Shenzhen University Dianyuan Fan/Shenzhen University

We present a detailed characterisation of the emergent bismuth-doped fibre amplifier, characterising performance in terms of electrical noise figure, polarisation dependent gain, and cross gain modulation. The results support its suitability for high capacity links.

Authors:Natsupa Taengnoi/University of Southampton Kyle Bottrill/University of Southampton Yang Hong/University of Southampton Yu Wang/University of Southampton Naresh Thipparapu/University of Southampton Jayanta Sahu/University of Southampton Periklis Petropoulos/University of Southampton David Richardson/University of Southampton

We demonstrate an all-polarization-maintaining dual-wavelength mode-locked fiber laser by bending a section of polarization maintaining fiber for intra-cavity loss tuning for the first time. This technique provides a simple way to generate dual-wavelength pulses with different repetition rate.

Authors:YUANJUN ZHU/The university of Tokyo Zekun Cui/The university of Tokyo Xiangnan Sun/The university of Tokyo Hongbo Jiang/The university of Tokyo Hengwei Zhao/The university of Tokyo Lei Jin/The university of Tokyo Shinji Yamashita/The university of Tokyo Sze Set/The university of Tokyo

We present the first observation of harmonic mode locking in Mamyshev oscillator. The Yb-doped all-PM oscillator emits 2 nJ pulses with repetition rate up to 229 MHz at 14th harmonic, limited by available pump power.

Authors:Bernard Piechal/Institute of Physical Chemistry PAS Tomasz Kardas/Fluence sp. z o. o. Mateusz Pielach/Institute of Physical Chemistry PAS Yuriy Stepanenko/Institute of Physical Chemistry PAS

We demonstrate a 5 W, 65 fs single-mode Er fiber comb based on efficient pulse compression of gain-narrowed pulses from a chirped pulse amplification system. We generate two octaves of midinfrared with these pulses.

Authors:Kevin Lee/IMRA America, Inc. Gengji Zhou/University of Michigan Peter Schunemann/BAE Systems Jie Jiang/IMRA America, Inc. Martin Fermann/IMRA America, Inc.

In present paper we demonstrate a carbon nanotube saturable absorber with variable nonlinear optical response controlled by electrochemical gating. Implemented into all-PM fiber laser scheme this device allows switching between mode-locked and Q-switched generation regimes.

Authors:YURY GLADUSH/Skoltech Aram Mkrtchyan/Skoltech Daria Kopylova/Skoltech Aleksey Ivanenko/Novosibirsk State University Boris Nyushkov/Novosibirsk State University Sergey Kobtsev/Novosibirsk State University Alexey Kokhanovskiy/Novosibirsk State University Alexander Khegay/Fiber optic research center Mikhail Melkumov/Fiber optic research center Maria Burdanova/University of Warwick Michael Staniforth/University of Warwick James Lloyd-Hughes/University of Warwick Albert Nasibulin/Skoltech

38 µJ pulse energy with peak power of 1.3 kW and 0.3 nm spectral width is obtained at a short-wavelength of 1851 nm by actively Q-switching a thulium fiber laser cladding-pumped at 792 nm.

Authors:Shankar Pidishety/Optoelectronics Research Centre, University of Southampton Pranabesh Barua/SPI Lasers UK Ltd Pablo G. Rojas Hernández/Optoelectronics Research Centre, University of Southampton Belal Mohammad/Optoelectronics Research Centre, University of Southampton Jayanta K. Sahu/Optoelectronics Research Centre, University of Southampton M. Núñez Velázquez/Optoelectronics Research Centre, University of Southampton Johan Nilsson/Optoelectronics Research Centre, University of Southampton

Electrically injected single frequency lasers based on the concept of parity-time symmetry are designed and realized using standard fabrication techniques. High performance ridge waveguide complex coupled devices are reported.

Authors:Abderrahim Ramdane/Centre de Nanosciences et Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay Vincent Brac de la Perriere/Centre de Nanosciences et Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay Quentin gaimard/Centre de Nanosciences et Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay Henri Benisty/Laboratoire Charles Fabry de l’Institut d’Optique, CNRS, Univ. Paris Saclay Anatole LUPU/Centre de Nanosciences et Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay

The amplification of 80 Gbps non-return to zero signal and error-free operation within the FEC limit were demonstrated in online data transmission measurements at over 60^oC using quantum dot SOA.

Authors:Kouichi Akahane/National Inst Information & Comm Tech Toshimasa Umezawa/National Inst Information & Comm Tech Atsushi Matsumoto/National Inst Information & Comm Tech Yuki Yoshida/National Inst Information & Comm Tech Naokatsu Yamamoto/National Inst Information & Comm Tech

We propose use of photonic integration to develop ultra-high-speed digital-to-analog converters (DACs). As a proof of concept, a 12.4 GS/s DAC has been demonstrated experimentally on a silicon photonics platform.

Authors:Shivangi Chugh/IIT Bombay Sandeep Goyal/IIT Bombay Shalabh Gupta/IIT Bombay

We propose a new type of channel waveguide with sub-wavelength structure for achieving near-zero and flattened dispersion-band (< 100ps/nm/km variation within 200nm bandwidth) on the silicon-on insulator (SOI) platform at the 1.55μm telecommunication wavelength.

Authors:Lai Ting/National Chiao-Tung University Yi-Jang Hsu/National Chiao-Tung University Xuan-Ming Guo/National Chiao-Tung University Yinchieh Lai/National Chiao-Tung University

Two kinds of ZnO with different electronic properties were used as electron transport layer in quantum dot light emitting diode. Their gap states were engineered by different ways to improve the device performance.

Authors:Zhenghui Wu/Southern Unverisity of Science and Technology Wenda Zhang/Southern Unverisity of Science and Technology Pai Liu/Southern Unverisity of Science and Technology Kai Wang/Southern Unverisity of Science and Technology Xiao Wei Sun/Southern Unverisity of Science and Technology

A compact 100-GHz 1× 8 arrayed waveguide grating with 3 dB insertion loss and -20 dB crosstalk, enabled by a novel concept of waveguide superlattice, is experimentally demonstrated.

Authors:Qi Han/University Laval Michaël Ménard/Université du Québec à Montréal Wei Shi/University Laval

We propose and optimize a parallel structure PIN photodetector by using a obconical shape surrounded by a ring-shaped V-groove trench to improve the PD performance. The bandwidthefficiency product is increased by 67.89% with the construction.

Authors:Huijuan Niu/Beijing Univ. Posts & Telecommunications Yongqing Huang/Beijing Univ. Posts & Telecommunications Yisu Yang/Beijing Univ. Posts & Telecommunications Kai Liu/Beijing Univ. Posts & Telecommunications Xiaofeng Duan/Beijing Univ. Posts & Telecommunications Bing Shen/Beijing Univ. Posts & Telecommunications Mingwei Yang/The University of Arizona Qi Wei/Beijing Univ. Posts & Telecommunications Gang Wu/Beijing Univ. Posts & Telecommunications Chaozheng Xiao/Beijing Univ. Posts & Telecommunications Huayun Zhi/Beijing Univ. Posts & Telecommunications Shiwei Cai/Beijing Univ. Posts & Telecommunications Xiaomin Ren/Beijing Univ. Posts & Telecommunications

This talk will update the audience on the progress of the QED-C consortium. The purpose of the QED-C is to identify and close gaps in critical supporting technologies for the emerging quantum industry.

Authors:Joe Broz/SRI International Celia Merzbacher/SRI International

A superconducting processor with 53 qubits was used to perform a "parallel computation" on 10^16 states. Running the quantum circuit 10^6 times takes 200 seconds, whereas a classical supercomputer would take 10,000 years.

Authors:John Martinis/Google LLC

Honeywell Quantum Solutions is focused on developing state-of-the-art trapped-ion quantum computers. Advanced optics solutions enable parallel multi-zone high-fidelity single- and two-qubit laser-based gates, sympathetic cooling of multi-species crystals and high fidelity state preparation and measurement.

Authors:Lora Nugent/Honeywell

Recent advances in the manipulation of individual neutral atoms offer a promising path to interesting NISQ devices. Here I will give an overview of recent advances in the field and introduce the system we have built at Atom Computing.

Authors:Benjamin Bloom/Atom Computing Robin Coxe/Atom Computing Jonathan King/Atom Computing Stanimir Kondov/Atom Computing Krish Kotru/Atom Computing Brian Lester/Atom Computing Mickey Mcdonald/Atom Computing Remy Notermans/Atom Computing Alexander Papageorge/Atom Computing Prasahnt Sivarajah/Atom Computing

We present a novel time-resolved acoustofluidic flow cytometer that will be capable of resolving heterogenous cell populations in FRET studies and screen for and enrich cells with near-infrared fluorescent proteins with higher quantum yields.

Authors:Jesus Sambrano/New Mexico State University Jessica Houston/New Mexico State University

An ultrasensitive chemical and biosensing method has been demonstrated for active sensing of analytes. This method works based on an optothermal microbubble which is generated through laser heating of metallic nanoparticles solution.

Authors:Farzia Karim/University of Dayton Yvonne Sun/University of Dayton Erick Vasquez/University of Dayton Chenglong Zhao/University of Dayton

A compact fiber capillary based microflow cytometer capable of detecting side-scattered-light is demonstrated by using a 45⁰ angle-cleaved metal coated optical fiber tip.

Authors:Harish Achar/KTH-Royal Institute of Technology Tharagan Kumar/KTH-Royal Institute of Technology Aman Russom/KTH-Royal Institute of Technology Walter Margulis/Research Institutes of Sweden Fredrik Laurell/KTH-Royal Institute of Technology

The peculiarity of red blood cell interaction was studied by optical tweezers. The intercellular interaction force in cell pairs and the role of cell deformation and adhesion time in interaction dynamics were evaluated and discussed.

Authors:Ruixue Zhu/University of Oulu, Finland Alexey Popov/University of Oulu, Finland Igor Meglinski/University of Oulu, Finland

We propose a non-invasive 5%-accuracy flow sensor based on self-mixing interferometry, and develop a dedicated prototype for measuring surfactant flow rate to help with respiratory distress due to lung surfactant problem in premature babies.

Authors:Silvano Donati/Universita degli Studi di Pavia

A compact terahertz microfluidic chip based on a Fano resonance of meta-atoms was demonstrated for the ultra-trace measurements of solutions. We successfully detected attomole order of solutes in a 77 pL volume of the solution.

Authors:Kazunori Serita/Osaka University Masayoshi Tonouchi/Osaka University

We demonstrated gold nanodimer arrays could improve the signal-to-noise ratio (SNR) of fluorescence correlation spectroscopy. We simultaneously acquired fluorescence and surface plasmon images of nanoscale objects with enhanced SNR using near-field localization at nanodimer’s gap.

Authors:H K Lee/Yonsei University Gwiyeong Moon/Yonsei University Seongmin Im/Yonsei University Donghyun Kim/Yonsei University

We report vortex-mode-assisted heterogeneous optical networks by incorporating low-loss vortex-mode fiber (VMF) and ultra-low-loss single-mode fibers (SMFs). Two vortex modes, each carrying a 8QAM signal, are successfully (de)multiplexed and transmitted through 100-km heterogeneous fiber links.

Authors:Wei Zhou/HUST Lei Sheng/YOFC Lulu Wang/HUST Yize Liang/HUST Shi Chen/HUST Lei zhang/YOFC Jie Luo/HUST Jian Wang/HUST

We present first report on an inline fiber polarizer design based on single-ring negative curvature fiber. Polarization filtering is achieved by selectively coupling one polarization to glass modes with extinction ratio >30dB and birefringence >10^-4.

Authors:Charu Goel/Nanyang Technological University Seongwoo Yoo/Nanyang Technological University

An illuminating fiber is demonstrated by incorporating a reflecting element along a fiber. The element creates a helical path longitudinally to efficiently scatter light. We present the concept and its demonstration in a 200-mm fiber.

Authors:Seongwoo Yoo/Nanyang Technological University Sidharthan Raghuraman/Nanyang Technological University chenjia Cheng/Nanyang Technological University Jichao Zang/Nanyang Technological University Ji Ming Ho/Nanyang Technological University Men Seng Yue/Nanyang Technological University David Payne/University of Southampton

We explored the energy scalability in single pulse domain of all-normal-dispersion fiber laser with NALM numerically and experimentally. We conquered wave-breaking problem and achieved the highest pulse energy from the laser of this structure.

Authors:Decai Deng/Tsinghua University Haitao Zhang/Tsinghua University Qihang Gong/Tsinghua University Jiaqi Zu/Tsinghua University

We present a visual interpretation of fiber-guided mode degeneracy lifting as spin-orbit interaction of orbital angular momentum modes in a ray picture, and the analytical results are verified by comparing them with eigen equation solutions.

Authors:Liang Fang/Wuhan National Lab for Optoelectronics Jian Wang/Wuhan National Lab for Optoelectronics

We report non-destructive measurement of the diameter of submicron air-clad waveguides to nanometer precision, based on parametric amplification of a broadband seed signal. Ultrashort pump and seed pulses allow the diameter to be longitudinally resolved.

Authors:Jonas Hammer/Max Planck Inst. Science of Light Daniel Häupl/Max Planck Inst. Science of Light Philip Russell/Max Planck Inst. Science of Light Nicolas Joly/Friedrich-Alexander University

We experimentally demonstrate a novel fiber-based LiDAR polarimetric system capable of generating pulses with customized temporal variations in their polarization. This technique allows for a complete set of polarimetric measurements without invoking complex external components.

Authors:Helena Lopez Aviles/University of Central Florida Christian Keyser/Air Force Research Laboratory Munitions Directorate Richard Martin/The Air Force Institute of Technology Khanh Nguyen/Torch Technologies Arielle Adams/Air Force Research Laboratory Munitions Directorate Demetrios Christodoulides/University of Central Florida

Real-time collision dynamics of vector solitons in a polarization-multiplexed mode-locked fiber laser was investigated with the help of time-stretch dispersive Fourier transform technique. Numerical simulation matches well with our experiments.

Authors:Kangjun Zhao/Tsinghua University Xiaosheng Xiao/Beijing University of Posts and Telecommunications Changxi Yang/Tsinghua University

We successfully fabricated a transversely disordered optical fiber made of chalcogenide glasses (AsSe2 and As2S5) for high-resolution mid-infrared image transport. Moreover, we evaluated local confinement on the fiber using finite element method.

Authors:Asuka Nakatani/Toyota Technological Institute Tong Tuan/Toyota Technological Institute Hayato Isai/Toyota Technological Institute Morio Matsumoto/Furukawa Denshi Co.,Ltd. Goichi Sakai/Furukawa Denshi Co.,Ltd. Takenobu Suzuki/Toyota Technological Institute Yasutake Ohishi/Toyota Technological Institute

We propose a fading free distributed acoustic sensor assisted with the scattering enhanced optical fiber and double wavelength lasers. The random polarization fading is effectively eliminated by synthesizing the scattering signals of two lasers.

Authors:Tao Liu/Huazhong Univ of Science and Technology Hao Li/Huazhong Univ of Science and Technology Tao He/Huazhong Univ of Science and Technology Cunzheng Fan/Huazhong Univ of Science and Technology Zhijun Yan/Huazhong Univ of Science and Technology Deming Liu/Huazhong Univ of Science and Technology Qizhen Sun/Huazhong Univ of Science and Technology

We report on the qualification of an all-fiber counter propagating pumped amplifier by using a narrow-linewidth single-frequency nanosecond fiber laser. The proposed amplifier is tailored to be used for coherent beam combining of fiber amplifiers.


Authors:Ihsan Fsaifes/Ecole Polytechnique, Institut Polytechnique de Paris Louis Daniault/LOA, ENSTA, Institut Polytechnique de Paris Séverine Bellanger/Ecole Polytechnique, Institut Polytechnique de Paris Matthieu Veinhard/Ecole Polytechnique, Institut Polytechnique de Paris Daniel Schulz/Optical Engines Inc Jason Tafoya/Optical Engines Inc Donald Sipes/Optical Engines Inc Jean-Christophe Chanteloup/Ecole Polytechnique, Institut Polytechnique de Paris

We investigate experimentally the effect of input polarization and pulse energy on the generated supercontinuum. Our detection system reveals the polarization properties of the supercontinuum, a typically unexplored parameter of these sources.

Authors:Nicolas Couture/University of Ottawa Rachel Ostic/University of Ottawa P. Harshavardhan Reddy/CSIR-Central Glass and Ceramics Research Institute Shyamal Das/CSIR-Central Glass and Ceramic Research Institute Anirban Dhar/CSIR-Central Glass and Ceramic Research Institute Mrinmay Pal/CSIR-Central Glass and Ceramic Research Institute Mukul Paul/CSIR-Central Glass and Ceramic Research Institute Ajoy Kar/Heriot-Watt University Jean-Michel Ménard/University of Ottawa

D-shaped fiber deposited with single-wall carbon-nanotubes was used as saturable absorber to achieve Q-switched Ho³⁺-doped fluoride fiber laser in all-fiber configuration. Stable Q-switched operation at 1192 nm was established with radio-frequency signal-to-noise ratio >50 dB.

Authors:Shijie Fu/The University of Arizona Xiushan Zhu/The University of Arizona Minghong Tong/The University of Arizona Masoud Mollaee/The University of Arizona Kort Wiersma/NP Photonics Khawlah AlYahyaei/The University of Arizona Jie Zong/NP Photonics Arturo Chavez/NP Photonics Nasser Peyghambarian/The University of Arizona

Two-octave supercontinuum of light-carrying orbital angular momentum is generated by launching a 100-fs 35-kW hyperbolic secant pulse in 10-mm air-core As₂S₃ ring fiber, covering 5219 nm bandwidth from 1422 nm to 6713 nm at -45dB.

Authors:Yingning Wang/Nankai University Yuxi Fang/Nankai University Wenpu Geng/Nankai University Jicong Jiang/Nankai University Zhi Wang/Nankai University Hao Zhang/Nankai University Changjing Bao/University of Southern California Hao Huang/University of Southern California Yongxiong Ren/University of Southern California Zhongqi Pan/University of Louisiana at Lafayette Yang Yue/Nankai University

Mid-infrared dual-comb fiber laser employing a high-coherence, ultra-broadband bi-directional fiber laser and periodically poled lithium niobate waveguides was developed for practical dual-comb spectroscopy. Mid-infrared generation with a broad spectrum range of 3.2-4.4 μm was demonstrated.

Authors:Yoshiaki Nakajima/University of Electro-Communications Yuya Hata/University of Electro-Communications Yugo Kusumi/University of Electro-Communications Kazumichi Yoshii/JST, ERATO IOS Project Kaoru Minoshima/University of Electro-Communications

We demonstrate an Yb-fiber based pre-chirp managed amplification system that emits 50-MHz, 47-fs pulses with 101.2-W average power. Using chirped mirrors as a compressor, we achieve 98% throughput efficiency.

Authors:Yao Zhang/Xidian University Runzhi CHen/Institute of Physics, Chinese Academy o Hangdong Huang/Xidian University Hao Teng/Institute of Physics, Chinese Academy o Shaobo Fang/Institute of Physics, Chinese Academy o Jiangfeng Zhu/Xidian University Junli Wang/Xidian University Guoqing Chang/Institute of Physics, Chinese Academy o zhiyi wei/Institute of Physics, Chinese Academy o

We report an all-optical modulator based on a MXene-deposited microfiber knot resonator, and apply it in an erbium-doped fiber as an active Q-switch for microsecond pulse generation.

Authors:Qing Wu/Beihang University Meng Zhang/Beihang University Yunzheng Wang/Shenzhen University Weichun Huang/Shenzhen University Zheng Zheng/Beihang University Han Zhang/Shenzhen University

We propose and demonstrate a fiber distributed acoustic sensing demodulation scheme based on dynamic birefringence estimation. The phase noise was effectively suppressed about 9.5dB at the fading channels in experiment.

Authors:Yujia Liu/Huazhong Univ of Science and Technology Hao Li/Huazhong Univ of Science and Technology Tao Liu/Huazhong Univ of Science and Technology Cunzheng Fan/Huazhong Univ of Science and Technology Zhijun Yan/Huazhong Univ of Science and Technology Deming Liu/Huazhong Univ of Science and Technology Qizhen Sun/Huazhong Univ of Science and Technology

We report on the fabrication and characterization of single-mode Ti:sapphire crystalline fibers. Using dip coating and high-temperature sintering at 1650 °C, solid-state single crystal growth was observed, and single-crystalline cladding was formed.

Authors:Teng I Yang/National Taiwan University Yu-Chan Lin/National Taiwan University Yi-Hsun Li/National Taiwan University Hou-Ting Liu/National Taiwan University Shih-Chang Wang/National Taiwan University Kai-Hsiang Chuang/Industrial Technology Research Institute Tzu-Chi Chou/Industrial Technology Research Institute Sheng-Lung Huang/National Taiwan University

We present the dual-band synchronization of two all-fiber mode-locked lasers, operating at 1.53-µm and 1.91-µm, using a common black phosphorus saturable absorber. This synchronized dual-wavelength laser shows a large cavity mismatch of 1.98 mm.

Authors:Xin Lian/Beihang University Guohua Hu/University of Cambridge Xinxin Jin/Beihang University Meng Zhang/Beihang University Qian Zhang/Beihang University Zheng Zheng/Beihang University Tawfique Hasan/University of Cambridge

We demonstrate an all-optical modulator based on a fiber-type Michelson interferometer. This modulator, fabricated utilizing a microfiber deposited with carbon nanotubes, shows a large modulation depth >29 dB and a slop efficiency of 0.0504 π/mW.

Authors:Menglu Zhu/Beihang University Meng Zhang/Beihang University Qing Wu/Beihang University Zheng Zheng/Beihang University

We show experimentally that geometric parametric instability in graded-index multimode fibers is composed by several multimode spectral components. The experimental observation is obtained by using a new 3D technique of high-resolution spatial and spectral analysis.

Authors:Yann Leventoux/Université de Limoges, XLIM Geoffroy Granger/Université de Limoges, XLIM Alessandro Tonello/Université de Limoges, XLIM Katarzyna Krupa/Université Bourgogne Franche-Comté, ICB UMR CNRS 6303 Guy Millot/Université Bourgogne Franche-Comté, ICB UMR CNRS 6303 Stefan Wabnitz/DIET, Sapienza Università di Roma, Sebastien Fevrier/Université de Limoges, XLIM Vincent Couderc/Université de Limoges, XLIM

We present a highly reproducible fiber Bragg grating (FBG) fabrication approach using IR femtosecond laser direct-writing method with the assistance of image-recognition technique for automatically positioning grating microstructure inside fiber core.

Authors:Yanjiang Yu/Jiangsu Normal University Feng Han/Jiangsu Normal University Wenjuan sun/Jiangsu Normal University Xian Feng/Jiangsu Normal University Jindan Shi/Jiangsu Normal University

We show that the performance of mode division multiplexed systems is degraded by both cross talk and interference. The effect of interference can be mitigated by using different wavelengths for the different modes.

Authors:Neethu Mariam Mathew/DTU Fotonik Lars Grüner-Nielsen/DTU Fotonik Michael Galili/DTU Fotonik Mads Lillieholm/DTU Fotonik Karsten Rottwitt/DTU Fotonik

We demonstrate highly customizable all polarization maintaining wavelength switchable mode-locked fiber laser using thermally controlled Lyot-filter, which delivers 25nm tunable output from 1546nm to 1571nm and dual-wavelength output at 1545nm and 1571nm.

Authors:XIANGNAN SUN/The University of Tokyo YUANJUN ZHU/The University of Tokyo YOHEI SUGIURA/The University of Tokyo Sze Set/The University of Tokyo Shinji Yamashita/The University of Tokyo

We report on the experimental observation of pulsating internal oscillation of soliton pairs featuring twofold relative phase evolution. These results could enrich the transient dynamics of soliton complexes and fuel the molecular analogy.

Authors:Yiyang Luo/Nanyang Technological University Ran Xia/Huazhong University of Science and Technology Perry Ping Shum/Nanyang Technological University Yusong liu/Huazhong University of Science and Technology Wenjun Ni/Nanyang Technological University Qizhen Sun/Huazhong University of Science and Technology Luming Zhao/Huazhong University of Science and Technology Xiahui Tang/Huazhong University of Science and Technology

We have demonstrated a stable ytterbium mode-locked fiber laser with an all fiber, bandwidth tunable spectral filter which can generate mode-locked spectrums of different shapes and bandwidth.

Authors:Ankita Khanolkar/University of Dayton Xiaowei Ge/Boston University Andy Chong/University of Dayton

A noise suppression method for distributed acoustic sensing based on the dual-pulse coherent detection is proposed and demonstrated. Through the complex superposition of two different frequency pulses, a maximum noise reduction of 15dB is realized.

Authors:Hao Li/Huazhong Univ of Science and Technology Yujia Liu/Huazhong Univ of Science and Technology Tao He/Huazhong Univ of Science and Technology Cunzheng Fan/Huazhong Univ of Science and Technology Tao Liu/Huazhong Univ of Science and Technology Zhijun Yan/Huazhong Univ of Science and Technology Deming Liu/Huazhong Univ of Science and Technology Qizhen Sun/Huazhong Univ of Science and Technology

This work reports a packaged optical fiber axicon probe generating Bessel beam and Bessel beam interferometry technique for measuring RI of hazardous liquid HCL, H₂SO₄. The measurement resolution of our system is 1*10 ^-4± 0.0007.

Authors:Amit Pandey/CSIR-CSIO, Chandigarh Pooja Gupta/CSIR-CSIO, Chandigarh Kaushal Vairagi/CSIR-CSIO, Chandigarh Samir Mondal/CSIR-CSIO, Chandigarh

We propose a single Line-by-Line inscribed FBG structure with both FBG and MZI characteristics for the first time to our knowledge. It has great potential to be used in dual parameter synchronous sensors

Authors:Yang Huang/Huazhong University of Science and Technology Xuewen Shu/Huazhong University of Science and Technology Yujie Kong/Huazhong University of Science and Technology Zuowei Xu/Huazhong University of Science and Technology

Non-invasive imaging through low spatial coherence light source based on multimode random fiber laser is proposed and demonstrated. A much simpler, robust and highly efficient structure is realized benefiting from the optical fiber based illumination.

Authors:Zhao Wang/University of Electronic Science and Technology of China Rui Ma/University of Electronic Science and Technology of China Shan Shan Wang/University of Electronic Science and Technology of China Wei Li Zhang/University of Electronic Science and Technology of China Yunjiang Rao/University of Electronic Science and Technology of China

Spectrum broader than 100 nm was generated from a mode-locked Yb-doped fiber laser at 169 MHz. Simulations revealed that broadband originated from the scheme of stretched-pulse rather than similariton.

Authors:Shoko Yokokawa/The University of Tokyo Lei Jin/The University of Tokyo Sze Set/The University of Tokyo Shinji Yamashita/The University of Tokyo

A low-volume mode-locked oscillator has been designed for environmental robustness and is suitable for frequency comb applications. Performance metrics include signal-to-noise ratios greater than 40 dB and in-loop Allan Deviations below 1E−16/Rt.Tau.

Authors:Henry Timmers/Vescent Photonics Dylan Tooley/Vescent Photonics Bennett Sodergren/Vescent Photonics Ryan Robinson/Vescent Photonics Kurt Vogel/Vescent Photonics Kevin Knabe/Vescent Photonics

We use a 3D scanning Kerr microscopy technique to resolve the 3D magnetization response in both equilibrium and non-equilibrium regimes for micron-sized permalloy disks. Moreover, we show the effect of uniaxial anisotropy in both regimes.

Authors:Mahdi Mehrnia/Case Western Reserve University Jeremy Trimble/Case Western Reserve University Jesse Berezovsky/Case Western Reserve University

We study many body effects and disorder in both narrow and wide quantum wells with two-dimensional coherent spectroscopy. The inhomogeneous linewidth, homogeneous linewidth, and exictation induced dephasing depend on width in AlGaAs/GaAs quantum wells.

Authors:Cesar Perez/University of Michigan John Reno/Sandia National Laboratories Steven Cundiff/University of Michigan

Hexagonal SiGe is a direct bandgap semiconductor due to zone folding. A Lasher-Stern-Würfel fit of the photoluminescence spectrum unambiguously confirms band-to-band recombination. The transition matrix elements are large since the translational symmetry is broken.

Authors:Alain Dijkstra/Technische Universiteit Eindhoven Marvin van Tilburg/Technische Universiteit Eindhoven Elham Fadaly/Technische Universiteit Eindhoven Victor van Lange/Technische Universiteit Eindhoven Marcel Verheijen/Technische Universiteit Eindhoven Jens Rene Suckert/Friedrich Schiller Universitat Claudia Rodl/Friedrich Schiller Universitat juergen furthmueller/Friedrich Schiller Universitat Friedhelm Bechstedt/Friedrich Schiller Universitat Silvana Botti/Friedrich Schiller Universitat David Busse/Technische Universitat Munchen Jonathan Finley/Technische Universitat Munchen Erik Bakkers/Technische Universiteit Eindhoven Jos Haverkort/Technische Universiteit Eindhoven

We report non-trivial changes in the photoconductivity of organic semiconductor polarons when their optical transition is strongly-coupled to a microcavity mode. Our observations point to a change in the underlying photoinduced electron transfer process.

Authors:Nina Krainova/Pennsylvania State University Noel Giebink/Pennsylvania State University

We demonstrated exciton electroluminescence by impact excitation in a monolayer WSe₂ based field effect transistor on SiO₂/Si substrate at room temperature. Hot electrons or holes can be controlled as impact sources through the back gate.

Authors:Jiabin Feng/Tsinghua University Yongzhuo Li/Tsinghua University Song Fu/Tsinghua University Jianxing Zhang/Tsinghua University Hao Sun/Tsinghua University Lin Gan/Tsinghua University Cunzheng Ning/Tsinghua University

We present the effects of wavelength scaling on the photoelectron cutoff energy of laser-driven dielectric nanoparticles. Results indicate a complex mix of ponderomotive scaling, field enhancement and charge interactions dictate photoionization and subsequent electron propagation.

Authors:Jeffrey Powell/Kansas State University Adam Summers/Kansas State University Matthias Kling/Ludwig-Maximilians-Universität Daniel Rolles/Kansas State University Carlos Trallero-Herrero/University of Connecticut Artem Rudenko/Kansas State University

High-order harmonic spectroscopy is a powerful tool for studying structural symmetries in solids. Here, we study the orientation dependence and polarization of high-order harmonics generated from LiNbO₃ thin films driven by femtosecond mid-infrared laser pulses.

Authors:Shima Gholam Mirzaeimoghadar/University of Central Florida Erin Crites/University of Central Florida Troie Journigan/University of Central Florida Volodymyr Turkowski/University of Central Florida Tracy Sjaardema/University of Central Florida Sasan Fathpour/University of Central Florida Michael Chini/University of Central Florida

The exciton dynamics from the aspect of acceptor is revealed by the time-resolved differential reflection measurement and the enhanced photoluminescence of heterostructure is achieved by energy transfer and the suppression of exciton-exciton annihilation.

Authors:Yang Luo/School of Physics, Peking University Hangyong Shan/School of Physics, Peking University Xiaoqing Gao/College of Physics and Optoelectronic Engineering, Shenzhen University Pengfei Qi/School of Physics, Peking University Zheyu Fang/School of Physics, Peking University

We show that in the presence of an intense and single oscillation optical pulse, how the ultrafast topological resonance in gapped graphene leads to a strong valley polarization.

Authors:Seyyedeh Azar Oliaei Motlagh/Georgia State University Vadym Apalkov/Georgia State University Mark Stockman/Georgia State University

We focus intense, ultrashort, 3.6 micron-wavelength pulses into three single-crystal zincblende chalcogenide samples, ZnS(100), ZnS(110), and ZnSe(100). Symmetry properties of the generated harmonics are studied by rotating the crystals and measuring the output polarization.

Authors:Aaron Schweinsberg/U.S. Army Research Laboratory Michael Tripepi/The Ohio State University noah talisa/The Ohio State University Laura Vanderhoef/U.S. Army Research Laboratory Christopher Wolfe/U.S. Army Research Laboratory Michael Hastings/University of Arizona Miroslav Kolesik/University of Arizona Anthony Valenzuela/U.S. Army Research Laboratory Enam Chowdhury/The Ohio State University

By tailoring the driving electric field at the sub-cycle level, high harmonic generation (HHG) can be enhanced. We use the semi-classical model to configure a three-colour femtosecond field synthesiser to deliver optimised waveforms for HHG.x

Authors:Allan Pettipher/Imperial College London Bruce Weaver/Imperial College London Daniel Greening/Imperial College London Feng Li/Imperial College London James Turner/Imperial College London Jon Marangos/Imperial College London John Tisch/Imperial College London

We describe the bandgap opening of graphene engineered by femtosecond laser irradiation and develop a 1.55 µm saturable absorber combining a delicately engineered graphene/GaAs vdW heterostructure with InAs quantum dots capped with short-period superlattices.

Authors:Xu Wang/SINANO, CAS Cheng Jiang/SINANO, CAS Jian Liu/SINANO, CAS Xiaohui Li/Shaanxi Normal University Ziyang Zhang/SINANO, CAS

We propose a method that utilizes optimized probe time delays of 10 to 35 ps in hybrid femtosecond/picosecond vibrational coherent anti-Stokes Raman scattering thermometry and maximize sensitivity for temperatures from 300 to 2500 K.

Authors:Huijie Zhao/Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument Tsinghua University, Beijing, China. Ziyang Tian/Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument Tsinghua University, Beijing, China. Tao Wu/Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument Tsinghua University, Beijing, China. Yan Li/Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument Tsinghua University, Beijing, China. Haoyun Wei/Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument Tsinghua University, Beijing, China.

We present the development of a self-referencing Yb-fiber laser frequency comb based on octave-spanning supercontinuum generation from dispersion-engineered silicon nitride waveguides, fabricated with the standard, readily available plasma-enhanced chemical vapor deposition (PECVD) process.

Authors:Thomas Feigenson/MIT Kelsey Johnsen/MIT Dave Kharas/MIT Wonseok Shin/MIT Ryan Maxson/MIT Kevin Bagnall/MIT Adam Libson/MIT Andrew Benedick/MIT William Loh/MIT Cheryl Sorace-Agaskar/MIT Danielle Braje/MIT Robert McConnell/MIT Kyung-Han Hong/MIT

We demonstrate a Kerr soliton comb generation from a high-quality-factor fiber Fabry-Pérot microresonator. Single soliton can be achieved, with narrow beatnote linewidth and near-quantum-noise-limited low phase noise.

Authors:Xiaohan Wang/Nanjing University Kunpeng Jia/Nanjing University Dohyeon Kwon/Korea Advanced Institute of Science and Technology Jiarong Wang/University of Colorado, Boulder Eugene Tsao/University of Colorado, Boulder Jian Guo/Nanjing University Xiaoshun Jiang/Nanjing University Jungwon Kim/Korea Advanced Institute of Science and Technology Shi-ning Zhu/Nanjing University Zhenda Xie/Nanjing University Shu-Wei Huang/University of Colorado, Boulder

We present a carrier-envelope-offset-stabilized, self-referenceable Yb:CaF₂ oscillator. Employed single-mode diode pumping scheme enabled us to achieve low-noise operation with sub-70 mrad integrated phase noise of the locked f_ceo beat note (1 Hz – 1 MHz).

Authors:Maciej Kowalczyk/Wroclaw Uni. of Science and Technology Arkadiusz Hudzikowski/Wroclaw Uni. of Science and Technology Michal Porebski/Wroclaw Uni. of Science and Technology Jaroslaw Sotor/Wroclaw Uni. of Science and Technology

We demonstrate the dispersive temporal interferometer technique to detect the intracavity dynamics of ultrafast lasers. The roundtrip time variation during and after pulse formation and the relaxation process is real-time observed for the first time.

Authors:Tianhao Xian/Shanghai Jiao Tong University Li Zhan/Shanghai Jiao Tong University

An ultrafast temporal spectrum analyzer based on asynchronous optical sampling and dispersive time-stretch is demonstrated with 592.5-fs sampling resolution, 21-nm bandwidth, and 0.214-nm spectral resolution, and characterizes the ultrafast carrier dynamics of semiconductor optical amplifier.

Authors:Ningning Yang/Wuhan National Lab for Optoelectronics liao chen/Wuhan National Lab for Optoelectronics Lun Li/Wuhan National Lab for Optoelectronics Chen Liu/Wuhan National Lab for Optoelectronics Dong Xin/Wuhan National Lab for Optoelectronics Chi Zhang/Wuhan National Lab for Optoelectronics Xinliang Zhang/Wuhan National Lab for Optoelectronics

A dual-channel, high-power laser system with gap-less tuning from 250 – 1300 nm at 30 – 50 femtoseconds pulse duration is presented as the ideal tool for time-resolved photoemission microscopy and spectroscopy experiments.

Authors:Michael Schulz/Class 5 Photonics GmbH Jan-Heye Buss/Class 5 Photonics GmbH Torsten Golz/Class 5 Photonics GmbH Ivanka Grguras/Class 5 Photonics GmbH Mark Prandolini/Class 5 Photonics GmbH Gregor Indorf/Class 5 Photonics GmbH Thomas Braatz/Class 5 Photonics GmbH Robert Riedel/Class 5 Photonics GmbH

We investigated both ultrashort pulse filamentation and lasing action of N₂⁺ for pump-probe experiments. The CARS signals of air and CO₂ were detected with the lasing pulse of N₂⁺ as a probe.

Authors:Xiaodong Zhao/Institute of applied physics Stefan Nolte/Institute of applied physics Roland Ackermann/Institute of applied physics

We numerically investigate inter-pulse DFG process aiming for high-power long-wave mid-IR frequency combs. We show that 2-μm driven DFG can improve the average/peak power by a factor of ~33/246 compared with 1-μm driven DFG.

Authors:Qian Cao/DESY Franz KÄRTNER/DESY Guoqing Chang/Institute of Physics

We numerically investigate how the timing-jitter noise affects DFG-based offset-free frequency combs and demonstrate that β-separation line method can be used to geometrically estimate the comb linewidth.

Authors:Qian Cao/DESY Guoqing Chang/Institute of Physics

We present octave-spanning femtosecond mid-infrared optical parametric amplification in ZnGeP₂, pumped by a 2.4 μm Cr:ZnSe chirped-pulse amplifier. The full spectral coverage of 3-10 μm and a conversion efficiency of up to 23% have been obtained.

Authors:Sang-Hoon Nam/RLE/MIT Kyung-Han Hong/RLE/MIT

We describe theoretically and verify experimentally a class of diffraction-free pulsed optical beams that are `omni-resonant': they are transmitted through planar Fabry-P{\'e}rot resonators without spectral filtering even if their bandwidth far exceeds the cavity resonant linewidth.

Authors:Abbas Shiri/University of Central Florida, CREOL Murat Yessenov/University of Central Florida, CREOL Rohinraj Aravindakshan/University of Central Florida, CREOL Ayman Abouraddy/University of Central Florida, CREOL

We demonstrate the coherent staking of 128 pulses from a 0.95 GHz repetition rate femtosecond Yb:fiber laser by delay line and polarization control. More pulse stacking is in progress.

Authors:Bowei Yang/Peking University Guanyu Liu/Institute of Photonics Technology Abuduweili Abulikemu/Peking University Yan Wang/Peking University Aimin Wang/Peking University Zhigang Zhang/Peking University

Single-shot chiped pulse digital holography was proposed recently for recording multiple ultrafast wavefronts. We obtained phase images of spark discharge using two 35 fs probe pulses separated by 3.7 ps successfully by this method.

Authors:Naoki Karasawa/Chitose Inst of Science and Technology Shogo Yamada/Chitose Inst of Science and Technology Hiroki Kanaya/Chitose Inst of Science and Technology

Ultra-fast soliton dynamics of micro-combs are investigated based on an aberration-free temporal magnifier. By eliminating aberrations, temporal window is greatly extended to 1.4 ns and transient phenomena are clearly observed including soliton annihilation and mergence.

Authors:liao chen/Wuhan National Lab for Optoelectronics Yanjing Zhao/Wuhan National Lab for Optoelectronics Weiqiang Wang/Xi’an Institute of Optics and Precision Mechanics Hao Hu/Wuhan National Lab for Optoelectronics Ruolan Wang/Wuhan National Lab for Optoelectronics Xinyu Wang/Xi’an Institute of Optics and Precision Mechanics Sai Chu/City University of Hong Kong Brent Little/Xi’an Institute of Optics and Precision Mechanics Chi Zhang/Wuhan National Lab for Optoelectronics Wenfu Zhang/Xi’an Institute of Optics and Precision Mechanics Xinliang Zhang/Wuhan National Lab for Optoelectronics

We reported an OPO generating an idler wave with an instantaneous bandwidth covering the atmospheric transmission window at 3–5 μm based on an APPLN crystal and revealed a novel pulse-formation mechanism in this system.

Authors:Pei Liu/Huazhong Univ. of Science and Technology Jiaxing Heng/Huazhong Univ. of Science and Technology Chengxiao Ning/Huazhong Univ. of Science and Technology Zhaowei Zhang/Huazhong Univ. of Science and Technology

A continuously tunable ultrafast doubly-resonant OPO with central-wavelength tunable over 1910-2070 nm for signal pulses and 2140-2340 nm for idler pulses has been demonstrated by introducing a frequency selection element into the cavity-length-locking system.

Authors:Chengxiao Ning/Huazhong Univ. of Science and Technology Pei Liu/Huazhong Univ. of Science and Technology Zhaowei Zhang/Huazhong Univ. of Science and Technology

We demonstrate the effectiveness of reinforcement learning for controlling the feedback of delay line coherent pulse stacking.

Authors:Abulikemu Abuduweili/Peking University Bowei Yang/Peking University Zhigang Zhang/Peking University

We present a multi-pass Chirped Pulse Amplification system using Ho:YLF that can produce 32 mJ pules at 2.05 µm and 1 kHz repetition rate. The seed is generated from DC-OPA which is driven by a Ti:Sapphire laser.

Authors:Fangjie Zhou/University of Central Florida

We report a comparative study of free-electron dynamics in uniform-doped and gradient-doped GaAs photocathodes using femtosecond pump-probe transient reflectometry. The result shows better photoelectron accumulation in gradient-doped device, evidently due to drift-assisted carrier transportation.

Authors:Rui Zhou/The University of Alabama in Huntsville Hemang Jani/The University of Alabama in Huntsville Lingze Duan/The University of Alabama in Huntsville

We numerically investigate the effect of mode-area dispersion on nonlinear pulse propagation dynamics in gas-filled anti-resonant hollow-core fibers. We find that this effect becomes nonnegligible when the system is pumped close to the zero dispersion.

Authors:YING WAN/Nanyang Technological University Md Hasan/The Australian National University Perry Ping Shum/Nanyang Technological University Wonkeun Chang/Nanyang Technological University

The SnSe₂ nanosheets fabricated by using solvothermal treatment have been successfully prepared as fiber-based saturable absorber by utilizing evanescent-field effect which can bear a high pump power. A 31^st order subpicosecond harmonic-mode-locking has been generated.

Authors:Jishu Liu/Shaanxi Normal University Xiaohui Li/Shaanxi Normal University

We demonstrate a spatiotemporal optical vortex with a purely transverse orbital angular momentum. Since the spatiotemporal vortex carries a scalable orbital angular momentum in the unique transverse direction, novel applications are expected.

Authors:Andy Chong/University of Dayton Chenhao Wan/Huazhong University of Science and Technology Jian Chen/University of Shanghai for Science and Technology Qiwen Zhan/University of Dayton

We proposed and experimentally demonstrated a simultaneous indoor visible light communication and positioning system based on machine learning and Alamouti STBC with two LED lamps. The average positioning error is as low as 0.73 cm.

Authors:Shencheng Ni/Soochow Universtiy Shanhong You/Soochow Universtiy

We demonstrate a 3-meter 2.5-Gbaud QAM-OFDMA visible light communication (VLC) system affording two users by implementing a 75-µm single layer quantum dot (QD) blue micro-LED with achieved extremely high packaging modulation bandwidth at 1.03 GHz.

Authors:Li Zhang/Tsinghua University Zixian Wei/Tsinghua University Chien-Ju Chen/National Tsing Hua University Lei Wang/Tsinghua University Kai-Chia Chen/National Tsing Hua University Meng-Chyi Wu/National Tsing Hua University Yuhan Dong/Tsinghua University Lai Wang/Tsinghua University Yi Luo/Tsinghua University H.Y. Fu/Tsinghua University

Custom coherent architectures can provide many advantages for FSO communications systems through co-development of integrated photonics, ASIC- or FPGA-based DSP algorithms, and system design to mitigate atmospheric turbulence and reduce pointing requirements.

Authors:David Geisler/Massachusetts Inst of Tech Lincoln Lab

We experimentally demonstrate a 4-Gbit/s turbulence-resilient two-OAM-mode-multiplexed FSO link using pilot tones at different wavelengths to mix beams at the receiver. Inter-modal crosstalk is measured to be resilient to turbulence for different OAM mode selections.

Authors:Runzhou Zhang/University of Southern California Nanzhe Hu/University of Southern California Kaiheng Zou/University of Southern California Huibin Zhou/University of Southern California Xinzhou Su/University of Southern California Zhe Zhao/University of Southern California Haoqian Song/University of Southern California Hao Song/University of Southern California Ahmed Almaiman/University of Southern California Kai Pang/University of Southern California Cong Liu/University of Southern California Brittany Lynn/Space & Naval Warfare Systems Center Moshe Tur/Tel Aviv University Alan Willner/University of Southern California

Near-infrared dual-comb spectroscopy is performed over two open-air paths upwind and downwind from pens containing approximately four hundred cattle. Time-resolved enhancements of CO₂, CH₄, NH₃ and H₂O were observed on the downwind path.

Authors:Daniel Herman/National Institute of Standards and Technology Lindsay Hutcherson/Kansas State University Chinthaka Weerasekara/Kansas State University Fabrizio Giorgetta/National Institute of Standards and Technology Kevin Cossel/National Institute of Standards and Technology Gabriel Colacion/National Institute of Standards and Technology Nathan Newbury/National Institute of Standards and Technology Stephen Welch/Kansas State University Brett DePaola/Kansas State University Ian Coddington/National Institute of Standards and Technology Eduardo Santos/Kansas State University Brian Washburn/National Institute of Standards and Technology

In this talk we discuss the use of micro spectrometers – as tiny sensors- for precision agriculture and food testing. Will be showing the widespread use of applications and the positive impact in real life examples.


Authors:Bassam Saadany/Si-War Systems

A comparative approach using terahertz-time domain spectroscopy and micro-Raman spectroscopy is demonstrated to examine the spoilage of milk sample.

Authors:Diksha Garg/Indian Institute of Technology Delhi Aparajita Bandyopadhyay/Indian Institute of Technology Delhi Amartya Sengupta/Indian Institute of Technology Delhi

Additional spectral broadening for pyridine-water complexes was observed that cooperative phenomenon is in effect. Probe pulse delay measurements in coherent Raman spectroscopy differentiated spectral dephasing rates for cooperative species among others.

Authors:Gombojav Ariunbold/Mississippi State University Bryan Semon/Mississippi State University Supriya Nagpal/Mississippi State University Yuri Rostovtsev/University of North Texas

We use a broadband mid-IR dual-comb spectrometer operating between 2.8 and 5 microns to measure time-resolved mole fractions of 12 gaseous species and isotopologues in the pyrolysis products above a heated Eucalyptus wood sample.

Authors:Amanda Makowiecki/University of Colorado Boulder Nazanin Hoghooghi/University of Colorado Boulder Daneil Herman/National Institute of Standard andTechnology Elizabeth Strong/University of Colorado Boulder Ryan Cole/University of Colorado Boulder Gabriel Ycas/National Institute of Standard andTechnology Fabrizio Giorgetta/National Institute of Standard andTechnology Nathan Newbury/National Institute of Standard andTechnology Ian Coddington/National Institute of Standard andTechnology Gregory Rieker/University of Colorado Boulder

TBD

Authors:Juergen Popp/Friedrich-Schiller-Universität Jena

High-intensity x-ray/matter interactions have important applications. However, capturing the associated ultrafast dynamics remains difficult using standard simulation techniques. In this tutorial, I will present the methodological progress that has been made to address this challenge.
Robin Santra is a professor at DESY/Universität Hamburg. He was a staff scientist at Argonne National Laboratory and an associate professor at the University of Chicago. He won an IUPAP Young Scientist Prize and a U.S. Presidential Early Career Award. He is a Fellow of the American Physical Society.

Authors:Robin Santra/DESY

We present a HHG-based vacuum ultraviolet (VUV) source at the free electron laser FLASH2. The source provides ultrashort pulses from 10 to 40 eV, coupled to the REMI end-station (beamline FL26) for VUV-FEL pump-probe experiments.

Authors:Elisa Appi/Leibniz Universität Hannover Christina Papadopoulou/DESY Jose Mapa/Leibniz Universität Hannover Nishad Wesavkar/Leibniz Universität Hannover Christoph Jusko/Leibniz Universität Hannover Philip Mosel/Leibniz Universität Hannover Skirmantas Alisauskas/DESY Tino Lang/DESY Christoph Heyl/DESY Bastian Manschwetus/DESY Markus Braune/DESY Maciej Brachmanski/DESY Hannes Lindenblatt/Max-Planck-Institut für Kernphysik Florian Trost/Max-Planck-Institut für Kernphysik Severin Meister/Max-Planck-Institut für Kernphysik Patrizia Schoch/Max-Planck-Institut für Kernphysik Rolf Treusch/DESY Robert Moshammer/Max-Planck-Institut für Kernphysik Ingmar Hartl/DESY Uwe Morgner/Leibniz Universität Hannover Milutin Kovacev/Leibniz Universität Hannover

We demonstrate an all-optical approach for measuring spectrograms of individual FEL pulses by measuring a spectrally-resolved EUV-EUV-optical four-wave-mixing signal. We experimentally demonstrate that this is phase-sensitive can be applied to structured and unstable pulse trains.

Authors:William Peters/Los Alamos National Lab Travis Jones/Georgia Institute of Technology Anatoly Efimov/Los Alamos National Lab Emanuele Pedersoli/Elletra-Sincrotrone Laura Foglia/Elletra-Sincrotrone Riccardo Mincigrucci/Elletra-Sincrotrone Ivaylo Nikolov/Elletra-Sincrotrone Rick Trebino/Georgia Institute of Technology Richard Sandberg/Brigham Young University Miltcho Danailov/Elletra-Sincrotrone Flavio Capotondi/Elletra-Sincrotrone Filippo Bencivenga/Elletra-Sincrotrone Pamela Bowlan/Los Alamos National Lab

Nano-joule class “water-window” high-order harmonic generation under a neutral-medium condition is presented. The maximum harmonic photon energy reaches 360 eV with 3.5-nJ/shot in the “water-window” region.

Authors:Kotaro Nishimura/RIKEN Center for Advanced Photonics Lu Xu/RIKEN Center for Advanced Photonics Akira Suda/Tokyo University of Science Katsumi Midorikawa/RIKEN Center for Advanced Photonics Yuxi Fu/RIKEN Center for Advanced Photonics Eiji Takahashi/RIKEN Center for Advanced Photonics

We present an OPCPA with 25 W average power, generating 16.5 fs pulses with 14 GW peak power at 2.2 μm with 100 kHz repetition rate. This source enabled high-harmonic generation extending beyond 0.6 keV.

Authors:Pierre-Alexis Chevreuil/ETH Zurich Justinas Pupeikis/ETH Zurich Nicolas Bigler/ETH Zurich Christopher Phillips/ETH Zurich Lukas Gallmann/ETH Zurich Ursula Keller/ETH Zurich

Spatial frequency modulation imaging has a broad range of attributes: enhanced resolution in linear and nonlinear imaging modalities, phase sensitivity, and random access capability. Advanced manufacturing to the neurosciences can benefit from this unique optical metrology.

Authors:Jeffrey Squier/Colorado School of Mines Jeff Field/Colorado State University Randy Bartels/Colorado State University

We propose a method using the non-resonant signal measured in pure argon for gas concentration measurements based on ultrabroadband fs/ps coherent anti-Stokes Raman scattering. Measurement accuracies are greatly improved to 5% for CO₂/N₂/CH₄ gas mixtures.

Authors:Yang Ran/Institute of Applied Physics Stefan Nolte/Institute of Applied Physics Andreas Tünnermann/Institute of Applied Physics Roland Ackermann/Institute of Applied Physics

By injecting a soliton microcomb into a semiconductor laser that is driven by a sinusoidal current at the subharmonic frequencies of the soliton rate, we demonstrate broadband gain-switched frequency comb generation and low-noise microwave synthesis.

Authors:Wenle Weng/Ecole Polytechnique Federale de Lausanne Aleksandra Kaszubowska-Anandarajah/Trinity College Dublin Junqiu Liu/Ecole Polytechnique Federale de Lausanne Prince Anandarajah/Dublin City University Tobias Kippenberg/Ecole Polytechnique Federale de Lausanne

Attosecond Science has developed from the ability to drive High Harmonic Generation using intense, few-cycle laser pulses, traditionally obtained using Ti:Sapphie technology. I will discuss new opportunities arising from the development of high average power and high peak power OPCPA systems.

Authors:Mark Vrakking/Max Born Institute

Utilizing highly cascaded harmonic generation, we upconvert a MHz fiber laser to the vacuum ultraviolet (up to 18~eV). We apply the source to combustion-chemistry experiments and conduct numerical simulation to understand the nonlinear generation process

Authors:Dan Hickstein/KMLabs David Couch/University of Colorado Matthew Kirchner/KMLabs Scott Domingue/KMLabs Jessica Ramirez/KMLabs barney Ellison/University of Colorado Nicole Labbe/University of Colorado Brennan Peterson/KMLabs Margaret Murnane/University of Colorado Sterling Backus/KMLabs Henry Kapteyn/University of Colorado

We demonstrate coherent control in a semiconductor using vector laser beams and spatially map the resulting currents. Ring currents are excited using two configurations, and the potential for generating short, intense magnetic impulses is demonstrated.

Authors:Shawn Sederberg/Joint Attosecond Science Laboratory Fanqi Kong/Joint Attosecond Science Laboratory Felix Hufnagel/University of Ottawa Ebrahim Karimi/University of Ottawa Paul Corkum/Joint Attosecond Science Laboratory

We present topologically–protected propagation of unidirectional edge states at the interface between two dynamically–invariant systems with opposite effective magnetic field in synthetic dimensions.

Authors:Liat Nemirovsky/Technion Moshe-Ishay Cohen/Technion yaakov lumer/Technion Eran Lustig/Technion Mordechai Segev/Technion

We theoretically propose and experimentally demonstrate a nonlinear photonic Floquet topological insulator. The system enters a topological non-trivial phase under the influence of a high-power excitation by the optical Kerr effect in detuned directional couplers.

Authors:Lukas Maczewsky/Institute of Physics, University of Rostock Matthias Heinrich/Institute of Physics, University of Rostock Mark Kremer/Institute of Physics, University of Rostock Sergey Ivanov/Moscow Institute of Physics and Technology Max Ehrhardt/Institute of Physics, University of Rostock Franklin Martinez/Institute of Physics, University of Rostock Yaroslav Kartashov/Institute of Spectroscopy, Russian Academy of Science Vladimir Konotop/Departemento de Fisica and Centro de Fisica Teorica e Computacional, Universidade de Lisboa Lluis Torner/Departemento de Fisica and Centro de Fisica Teorica e Computacional, Universidade de Lisboa Alexander Szameit/Institute of Physics, University of Rostock

We demonstrate robust-boundary-mode (RBM) and non-contractible loop state (NLS) in a photonic Kagome lattice, manifesting unique topological entities in flatband systems. We achieve direct observation of the NLS along toroidal direction in a Corbino-geometry.

Authors:Jina Ma/Nankai University Jun-Won Rhim/Seoul National University Liqin Tang/Nankai University Shiqi Xia/Nankai University Haiping Wang/Nankai University Xiuyan Zheng/Nankai University Shiqiang Xia/Nankai University Daohong Song/Nankai University Yi Hu/Nankai University Yigang Li/Nankai University Bohm-Jung Yang/Seoul National University Daniel Leykam/Institute for Basic Science Zhigang Chen/Nankai University

The correspondence between phases and genus of toroidal surfaces, associated with nonlinear Schroedinger equation, lets us introduce the topological control. We prove it experimentally and report observations of controlled transitions from shock to rogue waves.

Authors:Giulia Marcucci/Sapienza University of Rome Davide Pierangeli/Sapienza University of Rome Aharon J. Agranat/Hebrew University of Jerusalem Ray-Kuang Lee/National Tsing Hua University Eugenio DelRe/Sapienza University of Rome Claudio Conti/ISC - CNR

We demonstrate photonic analog of 2D Zitterbewegung of an optical wavepacket in inversion-symmetry-breaking honeycomb lattices by exciting modes around the gapped Dirac points, leading to self-rotation of the “center-of-mass” mediated by Berry curvature.

Authors:Xiuying Liu/Nankai University Zhixuan Dai/Nankai University Daohong song/Nankai University Zhiming Zhang/Nankai University Shiqi Xia/Nankai University Liqin Tang/Nankai University Hrvoje Buljan/Nankai University Jingjun Xu/Nankai University Zhigang Chen/Nankai University

We construct skyrmion textures in a synthetic spin-1/2 dimension using nonlinear photonic crystals, giving rise to artificial gauge fields: a magnetic field, mimicking the topological Hall effect, and an electric field unique to our system.

Authors:Aviv Karnieli/Tel Aviv University Shai Tsesses/Technion - Israel institute of technology Guy Bartal/Technion - Israel institute of technology Ady Arie/Tel Aviv University

We observe nonlinearity-induced excitation of topological edge and interface states in a photonic SSH lattice, where two beams from opposite directions are coupled into (reflected from) nontrivial defect channel under nonlinear (linear) excitation upon collision.

Authors:Shiqi Xia/Teda College of Nankai University Nan Wang/Teda College of Nankai University Daria Smirnova/Australian National University Lev Smirnov/Institute of Applied Physics Liqin Tang/Teda College of Nankai University Daohong Song/Teda College of Nankai University Alexander Szameit/Universität Rostock Daniel Leykam/Institute for Basic Science Zhigang Chen/Teda College of Nankai University

We present the first experimental observation of solitons in the bulk of a photonic Floquet topological insulator. We probe a family of these nonlinear states residing on the topological band gap and performing cyclotron-like orbits.

Authors:Sebabrata Mukherjee/Penn State University Mikael Rechtsman/Penn State University

We measure the birefringence of nonlinear optical properties of cadmium silicon phosphide via the Z-scan technique at common pumping wavelengths. We discuss the implications of the NLO properties on the parametric conversion efficiency.

Authors:Manuel Ferdinandus/Air Force Institute of Technology Gengler Jamie/Air Force Research Laboratory Kent Averett/Air Force Research Laboratory Kevin Zawilski/BAE Systems Peter Schunemann/BAE Systems Carl Liebig/Air Force Research Laboratory