Phonon-induced multi-color correlations in hBN single-photon emitters

ORAL

Abstract


Color centers in hexagonal boron nitride have shown enormous promise as single-photon sources,
but a clear understanding of electron-phonon interaction dynamics is critical to their development
for quantum communications or quantum simulations. We demonstrate photon antibunching in the
filtered auto- and cross-correlations between zero-, one- and two-phonon replicas of defect
luminescence. With no background correction, we observe
single photon purity of 80% in a phonon replica and cross-spectral correlations of 82% between a phonon replica and the zero phonon line. We will discuss the feasibiltiy of quantum phononics via further exploration of the density of states for phononic cavities coupled to single quantum emitters in 2D materials .

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This research was sponsored by the Laboratory-Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC for the U.S. Department of Energy (DOE). Rapid thermal processing and spectroscopy experiments were carried out at the Center for Nanophase Materials Sciences, which is sponsored at ORNL by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. DOE. MAF was supported by the Department of Defense through the NDSEG fellowship and the NSF award DMR-1747426.

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Presenters

  • Matthew Feldman

    • Vanderbilt University

Authors

  • Matthew Feldman

    • Vanderbilt University

  • Alexander Puretzky

    • Oak Ridge National Laboratory
    • Center for Nanophase Materials Sciences, Oak Ridge National Laboratory

  • Lucas Lindsey

    • Oak Ridge National Laboratory

  • Dayrl Briggs

    • Oak Ridge National Laboratory

  • Phil Evans

    • Oak Ridge National Laboratory

  • Richard F Haglund

    • Vanderbilt University
    • Department of Physics and Astronomy, Vanderbilt University

  • Benjamin J Lawrie

    • Oak Ridge National Laboratory