We operate a fiber-based cavity with an inserted diamond membrane containing ensembles of silicon vacancy centers (SiV $${}^{-}$$ - ) at cryogenic temperatures $$\ge 4~$$ ≥ 4 K. The setup, sample fabrication and spectroscopic characterization are described, together with a demonstration of the cavity influence by the Purcell effect. This paves the way towards solid-state qubits coupled to optical interfaces as long-lived quantum memories.

中文翻译：

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用于将金刚石膜中的色心耦合到基于纤维的微腔的低温平台

我们在低温 $$\ge 4~$$ ≥ 4 K 下操作一个基于纤维的腔，其中插入的金刚石膜包含硅空位中心 (SiV $${}^{-}$$ - ) 的集合。设置，描述了样品制造和光谱表征，并演示了珀塞尔效应对腔的影响。这为将固态量子位耦合到光学接口作为长寿命量子存储器铺平了道路。