Dynamics of an Exciton-Polariton Condensate in a Tilted Ring Microcavity

ORAL

Abstract

We have created polariton condensates in a semiconductor microcavity with a lifetime greater than the equilibration time scale for the system at cryogenic temperature (below 10 K). By etching the microcavity into ring micro-channels of width 15 μm we confined the condensate to flow in a circular trap. We have directly imaged the motion of the condensate in the ring using time-resolved optical microscopy techniques. We study both the dynamical and the steady-state regime and present quantitative bounds on the strength of the interactions between polaritons in this system. We also measure the spatial coherence of the condensate in these micro-channels leading to important implications for scaling such networks of micro-channels for simulating NP-hard problems.

*Authors acknowledge funding from ARO (W911NF-15-1-0466), Gordon and Betty Moore Foundation (GBMF-4420) and by the NSF MRSEC program (DMR-0819860).

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Presenters

  • Shouvik Mukherjee

    • Univ of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh

Authors

  • Shouvik Mukherjee

    • Univ of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh

  • Valerii K. Kozin

    • University of Iceland

  • Anton V. Nalitov

    • University of Iceland

  • Ivan A. Shelykh

    • University of Iceland

  • Zheng Sun

    • Univ of Pittsburgh

  • David M Myers

    • Polytechnique Montreal
    • Engineering Physics, Polytechnique Montreal

  • Burcu Ozden

    • Pennsylvania State University
    • Penn State Abington

  • Jonathan Beaumariage

    • Physics and Astronomy, University of Pittsburgh
    • Univ of Pittsburgh
    • Astronomy and Physics, University of Pittsburgh

  • Loren Pfeiffer

    • Princeton University
    • Electrical Engineering, Princeton University
    • Electrical engineering, Princeton university
    • Princeton Univ
    • Department of Electrical Engineering, Princeton University
    • electrical engineering, Princeton
    • Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA

  • Kenneth West

    • Princeton University
    • Electrical Engineering, Princeton University
    • Electrical engineering, Princeton university
    • Princeton Univ
    • Department of Electrical Engineering, Princeton University
    • electrical engineering, Princeton
    • Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA

  • Andrew Daley

    • University of Strathclyde

  • David Wayne Snoke

    • Physics and Astronomy, University of Pittsburgh
    • Univ of Pittsburgh
    • Astronomy and Physics, University of Pittsburgh
    • University of Pittsburgh