Coupling single atoms and molecules to nanophotonic resonators

Ming Zhu; Tzu-Han Chang; Yan-Cheng Wei; Xinchao Zhou; Brian Fields; Hikaru Tamura; Chen-Lung Hung

doi:10.1117/12.2586954

5 March 2021 Coupling single atoms and molecules to nanophotonic resonators

Ming Zhu, Tzu-Han Chang, Yan-Cheng Wei, Xinchao Zhou, Brian Fields, Hikaru Tamura, Chen-Lung Hung

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117003R (2021) https://doi.org/10.1117/12.2586954
Event: SPIE OPTO, 2021, Online Only

Abstract

The integration of cold neutral atoms with nanophotonic circuits offers significant potential as a light–matter interface for a wide range of applications ranging from fundamental studies in quantum optics, quantum many– body physics, quantum networks to even ultracold chemistry. Here, we describe the design and realization of a novel platform where an efficiently–coupled microring photonic circuit on a chip is integrated with a cold atom system. This platform is fully compatible with laser cooling and trapping atoms, which allows for direct loading of cold atoms in close vicinity of a microring circuit. We discuss our experimental scheme and efforts to prepare for an array of individually trapped atoms within the near field region of a whispering-gallery mode (WGM) in a microring resonator for realizing strong atom–light interactions. Beyond our original motivations in creating an atom-photon quantum interface, we also discuss a novel application – for direct photoassociation (PA) synthesis and quantum state detection of cold diatomic molecules without closed optical transitions. We estimate that the transfer efficiency to a molecular ground state and the subsequent state detection efficiency can approach unity with strong photon–molecule coupling that could be realized in our microring resonator circuit.

Conference Presentation

Citation Download Citation

Ming Zhu, Tzu-Han Chang, Yan-Cheng Wei, Xinchao Zhou, Brian Fields, Hikaru Tamura, and Chen-Lung Hung "Coupling single atoms and molecules to nanophotonic resonators", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117003R (5 March 2021); https://doi.org/10.1117/12.2586954

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