• Technical Conference: 

    09 – 14 May 2021

  • Exhibition: 

    10 – 14 May 2021

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FTh2P

Quantum Optomechanical Systems

Presider: Thomas Purdy, NIST

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Presentations

Brillouin Optomechanics in Whispering-Gallery-Mode Microresonators: From Strong Coupling to Single-Phonon Addition and Subtraction (FTh2P.1)
Presenter: Michael Vanner, Imperial College London

We experimentally explore backward Brillouin scattering with high-frequency acoustic fields for optomechanics applications. We (i) demonstrate strong coupling between the optical and acoustic fields and (ii) perform single-phonon addition and subtraction operations.

Authors:Georg Enzian, Imperial College London / John Price, Imperial College London / Lars Freisem, Imperial College London / Magdalena Szczykulska, University of Oxford / Joshua Nunn, University of Bath / Ian Walmsley, Imperial College London / Jonathan Silver, National Physical Laboratory / Leonardo Del Bino, National Physical Laboratory / Shuangyou Zhang, National Physical Laboratory / Pascal Del Haye, National Physical Laboratory / Jiri Janousek, Australian National University / Ben Buchler, Australian National University / Ping Koy Lam, Australian National University / Michael Vanner, Imperial College London

  Paper

Laser Refrigeration of Sodium Yttrium Fluoride Nanoparticles in a Vacuum Optical Tweezer (FTh2P.2)
Presenter: Danika Luntz-Martin, University of Rochester

Laser refrigeration of rare-earth doped optically levitated nanoparticles allows for cooling of 42 K. Cooling is calibrated using a cryostat. Cooling efficiency decreases at pressures below 5 mbar as thermal contact with gas molecules decreases.

Authors:Danika Luntz-Martin, University of Rochester / R. Greg Felsted, University of Washington / Siamak Dadras, University of Rochester / Peter Pauzauskie, University of Washington / A. Vamivakas, University of Rochester

  Paper

Towards Quantum Measurement and Control of a Nanomechanical Resonator at Room Temperature (FTh2P.3)
Presenter: Sampo Saarinen, University of Copenhagen

We present an optomechanical platform that is expected to allow for room-temperature quantum control of a soft-clamped membrane resonator, enabled by the system's high quantum cooperativity and low cavity frequency noise.

Authors:Sampo Saarinen, University of Copenhagen / Nenad Kralj, University of Copenhagen / Yeghishe Tsaturyan, University of Chicago / Eric Langman, University of Copenhagen / Albert Schliesser, University of Copenhagen

  Paper

Mechanical Bound States in the Continuum for Cavity-Less Optomechanics (FTh2P.4)
Presenter: Hao Tong, University of Illinois at Urbana-Champaign

We demonstrate a new paradigm of phonon trapping using mechanical bound states in the continuum in slab-on-substrate phononic crystals and show its prospect for realizing quantum optomechanics without using microcavities.

Authors:Hao Tong, University of Illinois at Urbana-Champaign / Shengyan Liu, University of Illinois at Urbana-Champaign / Mengdi Zhao, University of Illinois at Urbana-Champaign / Kejie Fang, University of Illinois at Urbana-Champaign

  Paper

Double Layer Photonic Crystal Membranes in AlGaAs Heterostructures for Integrated Cavity Optomechanics (FTh2P.5)
Presenter: Sushanth Kini Manjeshwar, Chalmers University of Technology

We characterize the opto-mechanical properties of double-layer mechanical devices. These closely spaced photonic crystal membranes can exhibit photonic bound states in the continuum, which could enable the realization of a strongly coupled, integrated optomechanical system.

Authors:Sushanth Kini Manjeshwar, Chalmers University of Technology / Anastasiia Glushkova, Chalmers University of Technology / Jamie Fitzgerald, Chalmers University of Technology / Shu Min Wang, Chalmers University of Technology / Philippe Tassin, Chalmers University of Technology / Witlef Wieczorek, Chalmers University of Technology

  Paper

A High Cooperativity Nano-Optomechanical System Comprised of High Stress Si3N4 (FTh2P.6)
Presenter: Mohammad Bereyhi, Swiss Federale Institute of Technology Lausanne (EPFL)

We report the design fabrication and characterization of a monolithic nano-optomechanical transducer comprised of high-stress Si3N4 featuring a one-dimensional Fabry-Pérot photonic crystal cavity (Q~105) integrated with a nanobeam resonator (Q~106) with optomechanical cooperativity of C0=23.

Authors:Mohammad Bereyhi, Swiss Federale Institute of Technology Lausanne (EPFL) / Amirali Arabmoheghi, Swiss Federale Institute of Technology Lausanne (EPFL) / Nils Johan Engelsen, Swiss Federale Institute of Technology Lausanne (EPFL) / Tobias Kippenberg, Swiss Federale Institute of Technology Lausanne (EPFL)

  Paper

Effects of Laser Illumination on Superconducting Circuits for Quantum Transduction (FTh2P.7)
Presenter: Srujan Meesala, California Institute of Technology

Decoherence and noise from optical absorption in superconducting circuits hinder development of microwave to optical quantum transducers. Addressing these issues, we fabricate niobium-based resonators and qubits, and study them under laser illumination at milliKelvin temperatures.

Authors:Srujan Meesala, California Institute of Technology / Jash Banker, California Institute of Technology / Steven Wood, California Institute of Technology / Alp Sipahigil, California Institute of Technology / David Lake, California Institute of Technology / Piero Chiappina, California Institute of Technology / Andrew Beyer, Jet Propulsion Laboaratory / Matthew Shaw, Jet Propulsion Laboaratory / Oskar Painter, California Institute of Technology

  Paper

Ultra-Coherent Fundamental Mode Mechanicalresonators Designed Using Topology Optimization (FTh2P.8)
Presenter: Dennis Høj, Technical University of Denmark

Topology optimization has been used to optimize the quality factor × frequency product of the fundamental mode of silicon nitride based membranes. A factor of 2.5 enhancement was experimentally demonstrated, showing the potential for topology optimization to revolutionize designs of membranes.

Authors:Dennis Høj, Technical University of Denmark / Wenjun Gao, Tongji University / Fengwen Wang, Technical University of Denmark / Ulrich Hoff, Technical University of Denmark / Ole Sigmund, Technical University of Denmark / Ulrik Andersen, Technical University of Denmark

  Paper