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arXiv · 2102.11852

A Quantum Photonic Interface for Tin-Vacancy Centers in Diamond

Alison E. Rugar·Shahriar Aghaeimeibodi·Daniel Riedel·Constantin Dory·Haiyu Lu·Patrick J. McQuade·Zhi-Xun Shen·Nicholas A. Melosh·Jelena Vučković
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Abstract

The realization of quantum networks critically depends on establishing efficient, coherent light-matter interfaces. Optically active spins in diamond have emerged as promising quantum nodes based on their spin-selective optical transitions, long-lived spin ground states, and potential for integration with nanophotonics. Tin-vacancy (SnV$^{\,\textrm{-}}$) centers in diamond are of particular interest because they exhibit narrow-linewidth emission in nanostructures and possess long spin coherence times at temperatures above 1 K. However, a nanophotonic interface for SnV$^{\,\textrm{-}}$ centers has not yet been realized. Here, we report cavity enhancement of the emission of SnV$^{\,\textrm{-}}$ centers in diamond. We integrate SnV$^{\,\textrm{-}}$ centers into one-dimensional photonic crystal resonators and observe a 40-fold increase in emission intensity. The Purcell factor of the coupled system is 25, resulting in channeling of the majority of photons ($90\%$) into the cavity mode. Our results pave the way for the creation of efficient, scalable spin-photon interfaces based on SnV$^{\,\textrm{-}}$ centers in diamond.

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Alison E. Rugar, Shahriar Aghaeimeibodi, Daniel Riedel, Constantin Dory, Haiyu Lu, Patrick J. McQuade, Zhi-Xun Shen, Nicholas A. Melosh, Jelena Vučković. 2021-02-23. A Quantum Photonic Interface for Tin-Vacancy Centers in Diamond. https://doi.org/10.1103/physrevx.11.031021

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