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arXiv · 2310.05008

High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth

Bowen Yang·Yuhan Yan·Xuejie Li·Ling Xiao·Xiaolin Li·L. Q. Chen·Jianliao Deng·Huadong Cheng
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Abstract

Rydberg microwave (MW) sensors are superior to conventional antenna-based techniques because of their wide operating frequency range and outstanding potential sensitivity. Here, we demonstrate a Rydberg microwave receiver with a high sensitivity of $62\,\mathrm{nV} \mathrm{cm}^{-1} \mathrm{Hz}^{-1/2}$ and broad instantaneous bandwidth of up to $10.2\,\mathrm{MHz}$. Such excellent performance was achieved by the amplification of one generated sideband wave induced by the strong coupling field in the six-wave mixing process of the Rydberg superheterodyne receiver, which was well predicted by our theory. Our system, which possesses a uniquely enhanced instantaneous bandwidth and high-sensitivity features that can be improved further, will promote the application of Rydberg microwave electrometry in radar and communication.

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Bowen Yang, Yuhan Yan, Xuejie Li, Ling Xiao, Xiaolin Li, L. Q. Chen, Jianliao Deng, Huadong Cheng. 2023-10-08. High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth. https://doi.org/10.1103/physrevapplied.21.l031003

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