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

作　　者：田原 谭伯仲 杨晶 张奕 顾思洪 

机构地区：[1]School of Optical and Electronic Information,Huazhong University of Science and Technology [2]School of Physics,Huazhong University of Science and Technology [3]Key Laboratory of Atomic Frequency Standards,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第6期279-283,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11304362 and 11204351)

摘　　要：A method that obtains the Ramsey-coherent population trapping （CPT） spectrum with the Faraday effect is investi- gated. 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.A method that obtains the Ramsey-coherent population trapping （CPT） spectrum with the Faraday effect is investi- gated. 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 

分 类 号：O562[理学—原子与分子物理]