Acta Metrologica Sinica  2023, Vol. 44 Issue (4): 604-608    DOI: 10.3969/j.issn.1000-1158.2023.04.17
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Atomic Vapor Cell’s Relaxation Rate Measurement Based on Atomic Rabi Resonance
MIN Ji-chi1,2,JIN Shuang-hao1,2,JIANG Wen-song1,RU Ning2,LUO Zai1
1. China Jiliang University, Hangzhou, Zhejiang 310018, China
2. National Institute of Metrology,Beijing 100029, China
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Abstract  The atomic vapor cell is a core component in quantum precision measurement instruments, and the atomic relaxation rate is one of the important parameters of the cell.For the measurement of atomic relaxation rate, a microwave cavity was designed by Comsol Multiphysics software, and the microwave propagation process in the atomic gas chamber was simulated, which verified the rationality of the microwave cavity design.A system for measuring the relaxation rate of the atomic vapor cell was built, and the line shape of the Rabi resonance was measured with a fast Fourier transform analyzer(FFT).The cell relaxation rate was obtained by processing the experimental data, and this method is more convenient and accurate than the theoretical calculation of atomic relaxation rates and does not require excessive experimental conditions.
Key wordsmetrology      relaxation rate      Rabi resonance      microwave cavity      atomic vapor cell     
Received: 26 November 2022      Published: 18 April 2023
PACS:  TB973  
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MIN Ji-chi
JIN Shuang-hao
JIANG Wen-song
RU Ning
LUO Zai
Cite this article:   
MIN Ji-chi,JIN Shuang-hao,JIANG Wen-song, et al. Atomic Vapor Cell’s Relaxation Rate Measurement Based on Atomic Rabi Resonance[J]. Acta Metrologica Sinica, 2023, 44(4): 604-608.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.04.17     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I4/604
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