Lifetime Reduction of Single Germanium-Vacancy Centers in Diamond via a Tunable Open Microcavity
| Autor: | Zifkin, Rigel, Rosenblueth, César Daniel Rodríguez, Janitz, Erika, Fontana, Yannik, Childress, Lilian |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Coupling between a single quantum emitter and an optical cavity presents a key capability for future quantum networking applications. Here, we explore interactions between individual germanium-vacancy (GeV) defects in diamond and an open microcavity at cryogenic temperatures. Exploiting the tunability of our microcavity system to characterize and select emitters, we observe a Purcell-effect-induced lifetime reduction of up to $4.5\pm0.3$, and extract coherent coupling rates up to $360\pm20$ MHz. Our results indicate that the GeV defect has favorable optical properties for cavity coupling, with a quantum efficiency of at least $0.34\pm0.05$ and likely much higher. Comment: 14 pages, 6 figures, journal accepted version after initial review |
| Databáze: | arXiv |
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