High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth

• URL: http://arxiv.org/abs/2310.05008v1
• Date: Sun, 8 Oct 2023 04:45:22 GMT
• Title: High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth
• Authors: Bowen Yang, Yuhan Yan, Xuejie Li, Ling Xiao, Xiaolin Li, L. Q. Chen, Jianliao Deng, Huadong Cheng
• Abstract summary: Rydberg microwave (MW) sensors are superior to conventional antenna-based techniques because of their wide operating frequency range and outstanding potential sensitivity. We demonstrate a Rydberg microwave receiver with a high sensitivity of $62,mathrmnV mathrmcm-1 mathrmHz-1/2$ and broad instantaneous bandwidth of up to $10.2,mathrmMHz$.
• Score: 8.723231868400173
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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