Magnetic field measurement by stimulated Raman transitions and smoothing by dynamical compensation in rubidium fountain clock

被引:0
|
作者
Wang, Wenli [1 ]
Dong, Richang [1 ,2 ]
Wei, Rong [1 ]
Chen, Tingting [1 ,2 ]
Wang, Qian [1 ,2 ]
Wang, Yuzhu [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
magnetic field measurement; stimulated Raman transition; dynamical compensation; atomic fountain clock;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We present a method for magnetic field measurement by the weak magnetic-sensitive Zeeman splitting and a method for measuring the magnetic field vector by probing the line strength of stimulated Raman transitions. Compared with the traditional measurement, the contrast of the weak magnetic-sensitive resonance signal is improved significantly for gradient field. We also present a dynamical compensation method to smooth the spatial fluctuation of the magnetic field in the fountain clock. A homogeneous field with a 0.4 nT peak-to-peak value is realized compared to 5nT under the static magnetic field.
引用
收藏
页码:332 / 335
页数:4
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