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Diamond photonics platform based on silicon vacancy centers in a single-crystal diamond membrane and a fiber cavity

Häußler, Stefan; Benedikter, Julia; Bray, Kerem; Regan, Blake; Dietrich, Andreas; Twamley, Jason; Aharonovich, Igor; Hunger, David; Kubanek, Alexander

Abstract (englisch):
We realize a potential platform for an efficient spin-photon interface, namely negatively-charged silicon-vacancy centers in a diamond membrane coupled to the mode of a fully-tunable, fiber-based, optical resonator. We demonstrate that introducing the thin (∼200nm), single crystal diamond membrane into the mode of the resonator does not change the cavity properties, which is one of the crucial points for an efficient spin-photon interface. In particular, we observe constantly high Finesse values of up to 3000 and a linear dispersion in the presence of the membrane. We observe cavity-coupled fluorescence from an ensemble of SiV− centers with an enhancement factor of ∼1.9. Furthermore from our investigations we extract the ensemble absorption and extrapolate an absorption cross section of (2.9±2)×10−12cm2 for a single SiV− center, much higher than previously reported.

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DOI: 10.1103/PhysRevB.99.165310
Zitationen: 18
Web of Science
Zitationen: 14
Zitationen: 19
Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2469-9950, 2469-9969
KITopen-ID: 1000097946
Erschienen in Physical review / B
Verlag American Physical Society (APS)
Band 99
Heft 16
Seiten Article: 165310
Vorab online veröffentlicht am 25.04.2019
Nachgewiesen in Web of Science
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