Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks

doi:10.1088/1674-1056/24/6/063302

中国物理B ›› 2015, Vol. 24 ›› Issue (6): 63302-063302.doi: 10.1088/1674-1056/24/6/063302

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks

田原^a, 谭伯仲^c, 杨晶^b, 张奕^b, 顾思洪^{a b c}

a School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
b Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
c School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China

收稿日期:2015-01-07 修回日期:2015-01-30 出版日期:2015-06-05 发布日期:2015-06-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11304362 and 11204351).

Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks

Tian Yuan (田原)^a, Tan Bo-Zhong (谭伯仲)^c, Yang Jing (杨晶)^b, Zhang Yi (张奕)^b, Gu Si-Hong (顾思洪)^{a b c}

a School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
b Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
c School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2015-01-07 Revised:2015-01-30 Online:2015-06-05 Published:2015-06-05
Contact: Gu Si-Hong E-mail:shgu@wipm.ac.cn
About author:33.57.+c; 78.20.Ls; 42.25.Hz; 32.30.Jc
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11304362 and 11204351).

摘要/Abstract

摘要： A method that obtains the Ramsey-coherent population trapping (CPT) spectrum with the Faraday effect is investigated. An experiment is implemented to detect the light polarization components generated from the Faraday effect. The experimental results agree with the theoretical calculations based on the Liouville equation. By comparing with the method without using the Faraday effect, the potential of this method for a CPT-based atomic clock is assessed. The results indicate that this method should improve the short-term frequency stability by several times.

关键词: Faraday effect, Ramsey-CPT, atomic clock, frequency stability

Abstract: A method that obtains the Ramsey-coherent population trapping (CPT) spectrum with the Faraday effect is investigated. An experiment is implemented to detect the light polarization components generated from the Faraday effect. The experimental results agree with the theoretical calculations based on the Liouville equation. By comparing with the method without using the Faraday effect, the potential of this method for a CPT-based atomic clock is assessed. The results indicate that this method should improve the short-term frequency stability by several times.

Key words: Faraday effect, Ramsey-CPT, atomic clock, frequency stability

中图分类号: (Magneto-optical and electro-optical spectra and effects)

33.57.+c

78.20.Ls (Magneto-optical effects) 42.25.Hz (Interference) 32.30.Jc (Visible and ultraviolet spectra)

田原, 谭伯仲, 杨晶, 张奕, 顾思洪. Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks[J]. 中国物理B, 2015, 24(6): 63302-063302.

Tian Yuan (田原), Tan Bo-Zhong (谭伯仲), Yang Jing (杨晶), Zhang Yi (张奕), Gu Si-Hong (顾思洪). Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks[J]. Chin. Phys. B, 2015, 24(6): 63302-063302.

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Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks

Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks

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