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Cavity-Enhanced Single-Photon Source Based on the Silicon-Vacancy Center in Diamond

2017; American Physical Society; Volume: 7; Issue: 2 Linguagem: Inglês

10.1103/physrevapplied.7.024031

2331-7043

Julia Benedikter, Hanno Kaupp, Thomas Hümmer, Yuejiang Liang, Alexander Bommer, Christoph Becher, Anke Krueger, Jason M. Smith, Theodor W. Hänsch, David Hunger,

Quantum Information and Cryptography

Sources of individual photons have applications in quantum cryptography, computation, and metrology, but truly scalable sources are still needed. The authors couple silicon-vacancy centers to a high-$Q$ microcavity, yielding a room-temperature source with the potential for high efficiency, brightness, and spectral purity. This setup improves spectral density by more than two orders of magnitude and could offer single-photon rates above 1 GHz, as well as generation of indistinguishable photons.