Cavity-Enhanced 2D Material Quantum Emitters Deterministically Integrated with Silicon Nitride Microresonators

ORAL

Abstract

Two-dimensional material (2DM)-based quantum emitters have shown to be an attractive class of single-photon emitters owing to their spectral brightness, room temperature operation, site-specific engineering capabilities, and their tunability with external electric and strain fields. Here, we demonstrate a novel approach to precisely align and embed hexagonal Boron Nitride (hBN) with background-free silicon nitride microring resonators. Through the Purcell effect, our emitters exhibit a cavity-enhanced spectral coupling efficiency of 46% at room temperature that surpasses the theoretical limit for cavity-free waveguide-emitter coupling and prior demonstrations by nearly an order of magnitude. In addition, we simulate the projected performance of a 2DM-quantum emitter-cavity system using solutions to the Jaynes-Cummings Hamiltonian for a two-level system in a cavity. Our simulations highlight that with further optimization of the intrinsic quality factors of the platform the low emission silicon nitride-2DM platform can become a viable contender for future on-demand on-chip scalable quantum photonic light sources.

*This work was supported by NSF Award No. ECCS-2032272 and the NSF Quantum Foundry through Q-AMASE-i program Award No. DMR-1906325. Experiments were performed with support from DURIP Award No. FA9550-21-1-0257. S.I.A. acknowledges support from the California NanoSystems Institute through the Elings fellowship. K.W. and T.T. acknowledge support from JSPS KAKENHI (Grant Numbers 19H05790, 20H00354, and 21H05233)

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Publication: K. Parto et al. "Cavity-Enhanced 2D Material Quantum Emitters Deterministically Integrated with Silicon Nitride Microresonators." In: arXiv preprint arXiv:2206.14845 (2022)

Presenters

  • Kamyar Parto

    • University of California, Santa Barbara

Authors

  • Kamyar Parto

    • University of California, Santa Barbara

  • Shaimaa Azzam

    • University of California, Santa Barbara

  • Nick Lewis

    • UC Santa Barbara

  • Sahil Patel

    • University of California, Santa Barbara

  • Sammy Umezawa

    • University of California, Santa Barbara
    • UC Santa Barbara

  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • NIMS
    • Research Center for Functional Materials, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • Takashi Taniguchi

    • National Institute for Materials Science
    • Kyoto Univ
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science
    • Kyoto University
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • National Institute For Materials Science
    • NIMS
    • National Institute for Material Science
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • Galan Moody

    • University of California, Santa Barbara