Rational design of efficient defect-based quantum emitters

Mark E. Turiansky; Kamyar Parto; Galan Moody; Chris G. Van de Walle

doi:10.1063/5.0203366

APL Photonics (Jun 2024)

Rational design of efficient defect-based quantum emitters

Mark E. Turiansky,
Kamyar Parto,
Galan Moody,
Chris G. Van de Walle

Affiliations

Mark E. Turiansky: Materials Department, University of California, Santa Barbara, California 93106-5050, USA
Kamyar Parto: Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106-5080, USA
Galan Moody: Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106-5080, USA
Chris G. Van de Walle: Materials Department, University of California, Santa Barbara, California 93106-5050, USA

DOI: https://doi.org/10.1063/5.0203366
Journal volume & issue: Vol. 9, no. 6
pp. 066117 – 066117-13

Abstract

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Single-photon emitters are an essential component of quantum networks, and defects or impurities in semiconductors are a promising platform to realize such quantum emitters. Here, we present a model that encapsulates the essential physics of coupling to phonons, which governs the behavior of real single-photon emitters, and critically evaluate several approximations that are commonly utilized. Emission in the telecom wavelength range is highly desirable, but our model shows that nonradiative processes are greatly enhanced at these low photon energies, leading to a decrease in efficiency. Our results suggest that reducing the phonon frequency is a fruitful avenue to enhance the efficiency.

Published in APL Photonics

ISSN: 2378-0967 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://aplphotonics.aip.org

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