Magnetic field measurement based on a stimulated two-photon Raman transition  

作　　者：周子超 魏荣 史春艳 李唐 王育竹 

机构地区：[1]Key Laboratory of Quantum Optics,Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2011年第3期247-251,共5页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China (Grant No. 2005CB724506);the National Natural Science Foundation of China (Grant Nos. 10604058 and 10974215);the Open Research Fund of State Key Laboratory of Precision Spectroscope

摘　　要：The magnetic field in the microwave interaction zone of the fountain atomic clock was measured by stimulated Raman transitions. By measuring the two-photon transition frequency between the Zeeman levels of the two ground states, we achieved a magnetic field measurement accuracy of the order of 0.28 nT, This method is immune to the Doppler shift and the AC Stark shift. The second order Zeeman shift of the fountain clock is 170.7 × 10^-15, with the uncertainty of 7,2 × 10^-16.The magnetic field in the microwave interaction zone of the fountain atomic clock was measured by stimulated Raman transitions. By measuring the two-photon transition frequency between the Zeeman levels of the two ground states, we achieved a magnetic field measurement accuracy of the order of 0.28 nT, This method is immune to the Doppler shift and the AC Stark shift. The second order Zeeman shift of the fountain clock is 170.7 × 10^-15, with the uncertainty of 7,2 × 10^-16.

关 键 词：fountain atomic clock Raman transition second order Zeeman shift 

分 类 号：O437[机械工程—光学工程] O562[理学—光学]