Cryogenic platform for coupling color centers in diamond membranes to a fiber-based microcavity
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We operate a fiber-based cavity with an inserted diamond membrane containing ensembles of silicon vacancy centers (SiV−) at cryogenic temperatures ≥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.
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Applied physics : B, 126, 2020, Springer, Berlin u.a., 2020, https://doi.org/10.1007/s00340-020-07478-5