All-Optical Vector Cesium Magnetometer

被引:13
|
作者
Sun, Wei-Min [1 ,2 ]
Huang, Qiang [1 ,2 ]
Huang, Zong-Jun [2 ]
Wang, Ping-Wen [2 ]
Zhang, Jun-Hai [2 ,3 ]
机构
[1] Harbin Engn Univ, Coll Automat, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Key Lab In Fiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China
[3] Univ Fribourg, Phys Dept, CH-1700 Fribourg, Switzerland
基金
中国国家自然科学基金;
关键词
ATOMIC MAGNETOMETER;
D O I
10.1088/0256-307X/34/5/058501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Based on power modulation of a pump laser and precessional projection detection, we present an all-optical vector magnetometer of cesium, which has a demonstrated magnitude sensitivity of 80 fT/Hz(1/2) and an orientation sensitivity of 0.1 degrees/Hz(1/2). In the device, four main factors are measured experimentally, which are the Larmor precession frequency of a polarized magnetic moment that depends on the modulus of the measured magnetic field only, two phase shifts and amplitude ratio of the precession projection in the two probe directions relative to the magnetic field orientation. This kind of magnetometer with high sensitivity in the range of the spatial angle is suitable for solving the inverse problem and geomagnetic navigation.
引用
收藏
页数:4
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