• Technical Conference: 

    09 – 14 May 2021

  • Exhibition: 

    10 – 14 May 2021

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FTh1K

Near-field Imaging and Enhanced Sensing

Presider: Wei Zhou, Virginia Tech

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Presentations

SEIRA Sensing of Different Sugars at Physiological Concentrations (FTh1K.1)
Presenter: Harald Giessen, University of Stuttgart

We utilize resonant plasmonic surface-enhanced infrared absorption in combination with machine learning principal component analysis to detect aqueous glucose solutions down to g/l and to differentiate between five various sugars simultaneously.

Authors:Diana Pfezer, University of Stuttgart / Julian Karst, University of Stuttgart / Lucca Kühner, University of Stuttgart / Mario Hentschel, University of Stuttgart / Harald Giessen, University of Stuttgart

  Paper

Nanophotonic Chiral Sensing: How Does it Actually Work? (FTh1K.2)
Presenter: Steffen Both, University of Stuttgart

Nanophotonic chiral sensing has recently attracted a lot of attention; however, a thorough understanding is still missing. We present a general theory that provides deep insight into the underlying interactions.

Authors:Steffen Both, University of Stuttgart / Harald Giessen, University of Stuttgart / Thomas Weiss, University of Stuttgart

  Paper

Spectrometer-Free Electron Probe of Ultrafast Thermal Dynamics in Optically Excited Samples (FTh1K.3)
Presenter: Vahagn Mkhitaryan, ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology

We show that the plasmon excitation ultrafast dynamics in nanostructures can be followed through energy integrated, momentum resolved signals of inelastically scattered electrons without the need to have highly-monochromatized electron beams and electron spectrometers.

Authors:Vahagn Mkhitaryan, ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology / Eduardo Dias, ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology / Fabrizio Carbone, École Polytechnique Fédérale de Lausanne (EPFL) / Javier Garcia de Abajo, ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology

  Paper

Deep Learning-Based Spectral Reconstruction on a Chip Using a Scalable Plasmonic Encoder (FTh1K.4)
Presenter: Artem Goncharov, UCLA

We demonstrate a deep learning-based spectroscopy framework using a low-cost on-chip plasmonic encoder. When blindly tested on N=14,648 random spectra our system shows competitive performance, where the reconstruction of an unknown spectrum on average takes ~28µs.

Authors:Artem Goncharov, UCLA / Calvin Brown, UCLA / Zach Ballard, UCLA / Mason Fordham, UCLA / Ashley Clemens, UCLA / Yunzhe Qiu, UCLA / Yair Rivenson, UCLA / Aydogan Ozcan, UCLA

  Paper

Diffractive Metagrating Sensor: an Improved Technique for Response Intensification (FTh1K.5)
Presenter: Rifat Ahmmed Aoni, The Australian National University

We propose a novel concept for refractive-index sensing with enhanced sensitivity and robustness to source intensity. The proposed sensor is based on dielectric Huygens’ metagrating and experimentally shows the maximum sensitivity of 616 RIU-1.

Authors:Rifat Ahmmed Aoni, The Australian National University / Shridhar Manjunath, The Australian National University / Buddini Karawdeniya, The Australian National University / Khosro Kamali, The Australian National University / Lei Xu, Nottingham Trent University / Mohsen Rahmani, Nottingham Trent University / Andrey Miroshnichenko, University of New South Wales / Dragomir Neshev, The Australian National University

  Paper

Quantitative Waveform Sampling on Atomic Scales (FTh1K.6)
Presenter: Carmen Roelcke, University of Regensburg

Using a molecular switch as a local field sensor, we directly sample the temporal shape and strength of atomically confined light field transients inside the tunneling gap of a scanning tunneling microscope.

Authors:Carmen Roelcke, University of Regensburg / Dominik Peller, University of Regensburg / Lukas Kastner, University of Regensburg / Thomas Buchner, University of Regensburg / Alexander Neef, University of Regensburg / Johannes Hayes, University of Regensburg / Franco Bonafé, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science / Dominik Sidler, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science / Michael Ruggenthaler, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science / Angel Rubio, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science / Jascha Repp, University of Regensburg / Rupert Huber, University of Regensburg

  Paper

Giant Enhancement of Fluorescence-Detected Circular Dichroism of a Chiral Molecule Inside Photonic Hyper Crystals (FTh1K.7)
Presenter: SITA RAMA KRISHNA INDUKURI, Hebrew university of Jerusalem.

We demonstrate experimentally enhanced Fluorescence-Detected Circular Dichroism (FDCD) of a Chiral Molecule embedded within a negative refractive index hyperbolic metamaterial photonic hyper crystals (HMMPC).

Authors:SITA RAMA KRISHNA INDUKURI, Hebrew university of Jerusalem. / Nityanand Sharma, Hebrew university of Jerusalem. / Christian Frydendahl, Hebrew university of Jerusalem. / Noa Mazurski, Hebrew university of Jerusalem. / Uriel Levy, Hebrew university of Jerusalem.

  Paper

Watching in Situ the Hydrogen Diffusion Dynamics in Magnesium on the Nanoscale (FTh1K.8)
Presenter: Julian Karst, University of Stuttgart

We present a method to image the phase transition from metallic magnesium to dielectric magnesium hydride on the nanometer scale in-situ. This allows to understand and improve the intrinsically limited diffusion kinetics and switching speeds.

Authors:Julian Karst, University of Stuttgart / Florian Sterl, University of Stuttgart / Heiko Linnenbank, University of Stuttgart / Thomas Weiss, University of Stuttgart / Mario Hentschel, University of Stuttgart / Harald Giessen, University of Stuttgart

  Paper