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High-Efficiency Single Photon Emission from a Silicon T-Center in a Nanobeam

  • Chang-Min Lee
    Chang-Min Lee
    Institute for Research in Electronics and Applied Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, United States
    Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, United States
  • Fariba Islam
    Fariba Islam
    Institute for Research in Electronics and Applied Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, United States
    Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, United States
    More by Fariba Islam
  • Samuel Harper
    Samuel Harper
    Institute for Research in Electronics and Applied Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, United States
    Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, United States
  • Mustafa Atabey Buyukkaya
    Mustafa Atabey Buyukkaya
    Institute for Research in Electronics and Applied Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, United States
    Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, United States
  • Daniel Higginbottom
    Daniel Higginbottom
    Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
    Photonic Inc., Coquitlam, BC V3K 6T1, Canada
  • Stephanie Simmons
    Stephanie Simmons
    Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
    Photonic Inc., Coquitlam, BC V3K 6T1, Canada
  • , and 
  • Edo Waks*
    Edo Waks
    Institute for Research in Electronics and Applied Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, United States
    Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, United States
    *E-mail: [email protected]
    More by Edo Waks
Cite this: ACS Photonics 2023, 10, 11, 3844–3849
Publication Date (Web):October 31, 2023
https://doi.org/10.1021/acsphotonics.3c01142
Copyright © 2023 American Chemical Society

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    Abstract

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    Color centers in Si could serve as both efficient quantum emitters and quantum memories with long coherence times in an all-silicon platform. Of the various known color centers, the T-center holds particular promise because it possesses a spin ground state that has long coherence times, but this color center exhibits a long excited state lifetime that results in a low-photon emission rate, requiring methods to extract photon emission with high efficiency. We demonstrate high-efficiency single-photon emission from a single T-center using a nanobeam. The nanobeam efficiently radiates light in a mode that is well-matched to a lensed fiber, enabling us to couple over 70% of the photons in the nanobeam directly into a single-mode fiber. This efficiency enables us to directly demonstrate single-photon emission from the zero-phonon line, which represents the coherent emission from the T-center. Our results represent an important step toward silicon-integrated spin–photon interfaces for quantum computing and quantum networks.

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsphotonics.3c01142.

    • Optical image of the transferred nanobeams, reflectivity measurement setup, raw measured autocorrelation histogram, and estimation of the total number of emitted single photons from a T center (PDF)

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    Cited By

    This article is cited by 2 publications.

    1. Baptiste Lefaucher, Jean-Baptiste Jager, Vincent Calvo, Félix Cache, Alrik Durand, Vincent Jacques, Isabelle Robert-Philip, Guillaume Cassabois, Yoann Baron, Frédéric Mazen, Sébastien Kerdilès, Shay Reboh, Anaïs Dréau, Jean-Michel Gérard. Purcell Enhancement of Silicon W Centers in Circular Bragg Grating Cavities. ACS Photonics 2024, 11 (1) , 24-32. https://doi.org/10.1021/acsphotonics.3c01561
    2. Fariba Islam, Chang-Min Lee, Samuel Harper, Mohammad Habibur Rahaman, Yuqi Zhao, Neelesh Kumar Vij, Edo Waks. Cavity-Enhanced Emission from a Silicon T Center. Nano Letters 2024, 24 (1) , 319-325. https://doi.org/10.1021/acs.nanolett.3c04056

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