Lifetime Reduction of Single Germanium-Vacancy Centers in Diamond via a Tunable Open Microcavity
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866929344683704320 |
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| author | Zifkin, Rigel Rosenblueth, César Daniel Rodríguez Janitz, Erika Fontana, Yannik Childress, Lilian |
| author_facet | Zifkin, Rigel Rosenblueth, César Daniel Rodríguez Janitz, Erika Fontana, Yannik Childress, Lilian |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_14313 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Lifetime Reduction of Single Germanium-Vacancy Centers in Diamond via a Tunable Open Microcavity Zifkin, Rigel Rosenblueth, César Daniel Rodríguez Janitz, Erika Fontana, Yannik Childress, Lilian Quantum Physics 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. |
| title | Lifetime Reduction of Single Germanium-Vacancy Centers in Diamond via a Tunable Open Microcavity |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2312.14313 |