Strong interactions between integrated photonics and atomic vapors: towards single-photon-level operation

Roy Zektzer; Xiyuan Lu; Khoi Tuan Hoang; Rahul Shrestha; Sharoon Austin; Feng Zhou; Daron Westly; Paul Lett; Alexey V. Gorshkov; Kartik Srinivasan

doi:10.1117/12.3001965

13 March 2024 Strong interactions between integrated photonics and atomic vapors: towards single-photon-level operation

Roy Zektzer, Xiyuan Lu, Khoi Tuan Hoang, Rahul Shrestha, Sharoon Austin, Feng Zhou, Daron Westly, Paul Lett, Alexey V. Gorshkov, Kartik Srinivasan

Author Affiliations +

Proceedings Volume PC12911, Quantum Computing, Communication, and Simulation IV; PC129110G (2024) https://doi.org/10.1117/12.3001965
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

We present recent results aiming to construct single photon sources, detectors and gates using the integration of hot Rubidium atoms and microring resonators (MRRs). We demonstrate strong coupling between an ensemble of ≈53 atoms interacting with a high-Q (>4x10^5) cavity mode, with a many-atom coupling strength g/2pi≈1 GHz and cooperativity C≈3.6 achieved. A peak single-atom cooperativity C0≈0.4 is inferred; to achieve higher cooperativity, we have developed defect mode photonic crystal ring resonators with a 10x reduction in mode volume compared to the MRR while maintaining Q>10^5. Finally, we will discuss theoretical results that support single photon operations using these devices.

Conference Presentation

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Roy Zektzer, Xiyuan Lu, Khoi Tuan Hoang, Rahul Shrestha, Sharoon Austin, Feng Zhou, Daron Westly, Paul Lett, Alexey V. Gorshkov, and Kartik Srinivasan "Strong interactions between integrated photonics and atomic vapors: towards single-photon-level operation", Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC129110G (13 March 2024); https://doi.org/10.1117/12.3001965

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