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Room-temperature spontaneous superradiance from single diamond nanocrystals

Author

Listed:
  • Carlo Bradac

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Mattias T. Johnsson

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Matthew van Breugel

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Ben Q. Baragiola

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Rochelle Martin

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Mathieu L. Juan

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Gavin K. Brennen

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

  • Thomas Volz

    (Macquarie University
    ARC Centre of Excellence for Engineered Quantum Systems, Macquarie University)

Abstract

Superradiance (SR) is a cooperative phenomenon which occurs when an ensemble of quantum emitters couples collectively to a mode of the electromagnetic field as a single, massive dipole that radiates photons at an enhanced rate. Previous studies on solid-state systems either reported SR from sizeable crystals with at least one spatial dimension much larger than the wavelength of the light and/or only close to liquid-helium temperatures. Here, we report the observation of room-temperature superradiance from single, highly luminescent diamond nanocrystals with spatial dimensions much smaller than the wavelength of light, and each containing a large number (~ 103) of embedded nitrogen-vacancy (NV) centres. The results pave the way towards a systematic study of SR in a well-controlled, solid-state quantum system at room temperature.

Suggested Citation

  • Carlo Bradac & Mattias T. Johnsson & Matthew van Breugel & Ben Q. Baragiola & Rochelle Martin & Mathieu L. Juan & Gavin K. Brennen & Thomas Volz, 2017. "Room-temperature spontaneous superradiance from single diamond nanocrystals," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01397-4
    DOI: 10.1038/s41467-017-01397-4
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