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Frontiers in Optics

Realizing a non-classical light source with a chip-scale atomic beam via cavity-QED

B. M. Larsen, Hagan Hensley, Gabriela D. Martinez, Alexander L. Staron, William McGehee, John E. Kitching, James K. Thompson

Published Jan 1, 2025• 0 citations
Publisher

Abstract

Here, we demonstrate the feasibility of interfacing chip-scale atomic beam sources with high-finesse optical cavities to realize integrated cavity-QED systems. By leveraging the nonlinearity of atoms, we use this platform to generate non-classical light.
DOI
10.1364/fio.2025.fw6c.4

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Room temperature thermal atoms have proven to be a powerful resource for magnetometry, electrometry, atom-entanglement generation, and robust atomic clocks. Recent efforts have sought to realize compact and highly manufacturable atomic vapors and atomic beams for chip-scale magnetometry and atomic clocks. Here, we show that a chip-scale rubidium beam source can be integrated with a high finesse cavity-QED system to generate non-classical light. By demonstrating the compatibility of these two technologies, we open a new path for distributed sources of non-classical light and set the stage for using cavity-QED to enhance the performance of chip-scale magnetometers and atomic clocks.
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