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High photon-phonon pair generation rate in a two-dimensional optomechanical crystal

Author

Listed:
  • Felix M. Mayor

    (Stanford University)

  • Sultan Malik

    (Stanford University)

  • André G. Primo

    (Stanford University
    Universidade Estadual de Campinas (UNICAMP))

  • Samuel Gyger

    (Stanford University)

  • Wentao Jiang

    (Stanford University)

  • Thiago P. M. Alegre

    (Universidade Estadual de Campinas (UNICAMP))

  • Amir H. Safavi-Naeini

    (Stanford University)

Abstract

Integrated optomechanical systems are a leading platform for manipulating, sensing, and distributing quantum information, but are limited by residual optical heating. Here, we demonstrate a two-dimensional optomechanical crystal (OMC) geometry with increased thermal anchoring and a mechanical mode at 7.4 GHz, well aligned with the operation range of cryogenic microwave hardware and piezoelectric transducers. The eight times better thermalization than current one-dimensional OMCs, large optomechanical coupling rates, g0/2π ≈ 880 kHz, and high optical quality factors, Qopt = 2.4 × 105, allow ground-state cooling (nm = 0.32) of the acoustic mode from 3 K and entering the optomechanical strong-coupling regime. In pulsed sideband asymmetry measurements, we show ground-state operation (nm

Suggested Citation

  • Felix M. Mayor & Sultan Malik & André G. Primo & Samuel Gyger & Wentao Jiang & Thiago P. M. Alegre & Amir H. Safavi-Naeini, 2025. "High photon-phonon pair generation rate in a two-dimensional optomechanical crystal," Nature Communications, Nature, vol. 16(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57948-7
    DOI: 10.1038/s41467-025-57948-7
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    References listed on IDEAS

    as
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