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Nanoplasmonics for Purcell-enhanced Spontaneous Emission in Diamond Silicon Vacancy Centers

Hengming Li, Deniz Acil, Andrew M. Boyce, Nathaniel C. Wilson, Qixin Shen, Maiken H. Mikkelsen

Published Jan 1, 2024• 0 citations
Publisher

Abstract

Slow spontaneous emission limits photonic-based quantum information applications. Here, we discuss our recent progress in realizing ultrafast emission in silicon vacancy centers through integrating diamond membranes with sub-diffraction limited plasmonic cavities through Purcell enhancement.
DOI
10.1364/cleo_fs.2024.ftu4o.5

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Solid-state quantum emitters such as the N-VVV center in diamond have applications ranging from single-photon sources to quantum sensors, with some quantum properties preserved even under ambient conditions. A central challenge is to access these quantum properties efficiently, by catching as much emitted light as possible. In this study a tunable optical microcavity, with a mode volume as small as one wavelength cubed, is used to enhance spontaneous emission of single N-VVV centers in diamond, via the Purcell effect. This allows the authors to extract large amounts of light from several individually addressable emitters, and to control their spontaneous-emission rate.