A nanophotonic interface for tin-vacancy spin qubits in diamond

Shahriar Aghaeimeibodi; Alison Rugar; Daniel Riedel; Constantin Dory; Sattwik Deb Mishra; Shuo Sun; Haiyu Lu; Patrick J. McQuade; Zhi-Xun Shen; Nicholas A. Melosh; Jelena Vučković

doi:10.1117/12.2593984

1 August 2021 A nanophotonic interface for tin-vacancy spin qubits in diamond

Shahriar Aghaeimeibodi, Alison Rugar, Daniel Riedel, Constantin Dory, Sattwik Deb Mishra, Shuo Sun, Haiyu Lu, Patrick J. McQuade, Zhi-Xun Shen, Nicholas A. Melosh, Jelena Vučković

Author Affiliations +

Proceedings Volume 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021; 118060D (2021) https://doi.org/10.1117/12.2593984
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Building quantum networks requires efficient coupling of solid-state quantum emitters to photonic devices. Tinvacancy center (SnV) has attracted much interest for having long spin coherence times at temperatures above 1 K. Employing SnV as an optically addressable qubit requires integration with photonic structures to both route the emitted photons and enhance the light-matter interaction. We present incorporation of high-quality SnV centers with narrow linewidths in suspended diamond waveguides. Furthermore, we fabricate photonic crystal cavities in diamond with embedded SnV centers. We observe strong intensity enhancement of the photon emission when the cavity is resonant with the color center. Time-resolved photoluminescence measurements confirm that this effect is due to radiative Purcell enhancement of the spontaneous emission. Finally, we demonstrate Stark tuning of transition frequency of SnV centers, essential for multiemitter applications. These results are a significant step toward color-center-based quantum information processing applications without the need for dilution refrigerators.

Conference Presentation

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Shahriar Aghaeimeibodi, Alison Rugar, Daniel Riedel, Constantin Dory, Sattwik Deb Mishra, Shuo Sun, Haiyu Lu, Patrick J. McQuade, Zhi-Xun Shen, Nicholas A. Melosh, and Jelena Vučković "A nanophotonic interface for tin-vacancy spin qubits in diamond", Proc. SPIE 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021, 118060D (1 August 2021); https://doi.org/10.1117/12.2593984

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