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Title: Strongly Cavity-Enhanced Spontaneous Emission from Silicon-Vacancy Centers in Diamond

Journal Article · · Nano Letters

Quantum emitters are an integral component for a broad range of quantum technologies, including quantum communication, quantum repeaters, and linear optical quantum computation. Solid-state color centers are promising candidates for scalable quantum optics due to their long coherence time and small inhomogeneous broadening. However, once excited, color centers often decay through phonon-assisted processes, limiting the efficiency of single-photon generation and photon-mediated entanglement generation. Herein, we demonstrate strong enhancement of spontaneous emission rate of a single silicon-vacancy center in diamond embedded within a monolithic optical cavity, reaching a regime in which the excited-state lifetime is dominated by spontaneous emission into the cavity mode. We observe 10-fold lifetime reduction and 42-fold enhancement in emission intensity when the cavity is tuned into resonance with the optical transition of a single silicon-vacancy center, corresponding to 90% of the excited-state energy decay occurring through spontaneous emission into the cavity mode. Here, we also demonstrate the largest coupling strength (g/2π = 4.9 ± 0.3 GHz) and cooperativity (C = 1.4) to date for color-center-based cavity quantum electrodynamics systems, bringing the system closer to the strong coupling regime.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
EFRI-5710004174; W911NF1310309; N00014-15-1-2761; AC02-76SF00515
OSTI ID:
1457052
Journal Information:
Nano Letters, Vol. 18, Issue 2; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 94 works
Citation information provided by
Web of Science

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Cited By (19)

Nanodiamond Integration with Photonic Devices journal July 2019
Diamond as a Platform for Integrated Quantum Photonics journal October 2018
Photon-mediated interactions between quantum emitters in a diamond nanocavity journal September 2018
Manipulating spontaneous emission spectra using two-dimensional elliptical microcavities journal January 2019
Fabrication of highly dense arrays of nanocrystalline diamond nanopillars with integrated silicon-vacancy color centers during the growth journal January 2019
Deterministic coupling of site-controlled quantum emitters in monolayer WSe2 to plasmonic nanocavities journal October 2018
Developing a time-domain method for simulating statistical behavior of many-emitter systems in the presence of electromagnetic field journal January 2020
Optical coherence of implanted silicon vacancy centers in thin diamond membranes journal January 2019
Direct writing of single germanium vacancy center arrays in diamond journal December 2018
Inverse-designed diamond photonics journal July 2019
Advances in quantum light emission from 2D materials journal August 2019
Enhanced spin state readout of nitrogen-vacancy centers in diamond using infrared fluorescence journal September 2019
Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond journal October 2019
Fabrication of highly dense arrays of nanocrystalline diamond nanopillars with integrated silicon-vacancy color centers during the growth text January 2019
Nanodiamond integration with photonic devices preprint January 2016
Strain engineering of the silicon-vacancy center in diamond text January 2018
Inverse-Designed Diamond Photonics text January 2018
Enhanced spin state readout of Nitrogen-Vacancy centers in diamond using IR fluorescence text January 2019
Developing a time-domain method for simulating statistical behaviour of many-emitter systems in the presence of electromagnetic field text January 2019

Figures / Tables (5)


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