Ultralong temporal coherence in optically trapped exciton-polariton condensates

K. Orfanakis, A. F. Tzortzakakis, D. Petrosyan, P. G. Savvidis, and H. Ohadi
Phys. Rev. B 103, 235313 – Published 21 June 2021
PDFHTMLExport Citation
Abstract
Authors
Article Text
  • INTRODUCTION
  • EXPERIMENT
  • THEORY
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
  • APPENDICES
    • References

    Abstract

    We investigate an optically trapped exciton-polariton condensate and observe temporal coherence beyond 1 ns in duration. Due to the reduction of the spatial overlap with the thermal reservoir of excitons, the coherence time of the trapped condensate is more than an order of magnitude longer than that of an untrapped condensate. This ultralong coherence enables high-precision spectroscopy of the trapped condensate, and we observe periodic beats of the field correlation function due to a fine energy splitting of two polarization modes of the condensate. Our results are important for realizing polariton simulators with spinor condensates in lattice potentials.

    • Figure
    • Figure
    • Figure
    • Figure
    • Figure
    • Figure
    • Figure
    • Received 3 December 2020
    • Revised 17 May 2021
    • Accepted 9 June 2021

    DOI:https://doi.org/10.1103/PhysRevB.103.235313

    ©2021 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Exciton polaritonQuantum coherence & coherence measures
    1. Physical Systems
    Polariton condensate
    Condensed Matter, Materials & Applied Physics

    Authors & Affiliations

    K. Orfanakis1, A. F. Tzortzakakis2, D. Petrosyan2,3, P. G. Savvidis2,4,5,6, and H. Ohadi1,*

    • 1SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, United Kingdom
    • 2Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, GR-70013 Heraklion, Crete, Greece
    • 3A. Alikhanian National Science Laboratory, 0036 Yerevan, Armenia
    • 4ITMO University, St. Petersburg 197101, Russia
    • 5Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China
    • 6Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China

    • *ho35@st-andrews.ac.uk

    Article Text (Subscription Required)

    Click to Expand

    References (Subscription Required)

    Click to Expand
    Issue

    Vol. 103, Iss. 23 — 15 June 2021

    Reuse & Permissions
    Access Options
    Author publication services for translation and copyediting assistance advertisement

    Authorization Required

    Log In
    Other Options
    ×

    Download & Share

    PDFExportReuse & PermissionsCiting Articles (15)
    ×

    Images

    ×

    Sign up to receive regular email alerts from Physical Review B

    Log In

    Cancel
    ×

    Search

    Article Lookup

    Paste a citation or DOI
    Enter a citation
    ×