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arXiv · 1611.09998

Measuring magnetic field inside a microwave cavity via Rabi resonances in Cs atoms

Fuyu Sun·Dong Hou·Qingsong Bai·Xianhe Huang·Jie Ma·Xiaofeng Li
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Abstract

We present a technique for measuring microwave (MW) field based on Rabi resonances induced by the interaction of atoms with a phase-modulated MW field. A theoretical model of field measurement is used to calculate Rabi frequency. Single-peak feature of the measurement model makes the technique a valuable tool for simple and fast field measurement. As an example, we use the technique to determine the MW field strength inside a Cs vapor cell in the X-band rectangular cavity for applied power in the range of -21 dBm to 20 dBm. The results show that this proposed technique is capable for detecting the field over a broad dynamical range.

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Fuyu Sun, Dong Hou, Qingsong Bai, Xianhe Huang, Jie Ma, Xiaofeng Li. 2016-11-30. Measuring magnetic field inside a microwave cavity via Rabi resonances in Cs atoms. https://arxiv.org/abs/1611.09998

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