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Conference on Lasers and Electro-Optics

A nanophotonic interface for tin-vacancy centers in diamond

Daniel Riedel, Alison E. Rugar, Shahriar Aghaeimeibodi, Constantin Dory, Haiyu Lu, Patrick J. McQuade, Zhi‐Xun Shen, Nicholas A. Melosh, Jelena Vuckovic A

Published Jan 1, 2022• 0 citations
Publisher

Abstract

We present the coupling of tin-vacancy centers in diamond to a photonic crystal cavity resulting in a more than 10-fold enhancement of the spontaneous radiative recombination rate.
DOI
10.1364/cleo_qels.2022.fw5f.3

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Quantum networks rely on the efficient coupling of coherent quantum memories to photonic links. Tin-vacancy centers (SnV) have emerged as promising candidates for the implementation of an optically interfaced quantum memory based on their long spin coherence times at temperatures above 1K. To enhance their interaction with photons SnV centers need to be integrated with high-quality photonic structures. In this work, we report the enhancement of coherent emission of SnV centers by coupling them to a nanophotonic waveguide resonator. We observe strong intensity enhancement of the photon emission when the cavity is resonant with the color center. We demonstrate strong enhancement of the radiative recombination rate of SnV centers resulting in their predominant emission via the coherent zero-phonon line and into the cavity mode. These results are a significant step toward color-center-based quantum information processing applications without the need for dilution refrigerators.