Research on the spin-exchange-relaxation-free atomic magnetometer based on Herriott multipass cell

被引：0
|
作者：
Wang Y. [1 ,2 ]
Liang M. [1 ,2 ]
机构：
[1] Key Laboratory for Geophysical Instrumentation of Ministry of Education, Jilin University, Changchun
[2] College of Instrumentation & Electrical Engineering, Jilin University, Changchun
来源：
Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument | 2020年 / 41卷 / 06期
关键词：
Detecting sensitivity; Herriott cell; Long optical path; Spin exchange relaxation free atomic magnetometer;
D O I：
10.19650/j.cnki.cjsi.J2006247
中图分类号：
学科分类号：
摘要：
To improve the detection sensitivity of spin-exchange-relaxation-free (SERF) atomic magnetometer, a method is proposed by increasing the optical range of the detection light, which interacts with the pump light in the gas chamber. This method uses the technique of establishing Herriott multipass cell outside the atomic gas chamber. And the whole system is placed inside the shielding cylinder. The magnetic-free detection system is designed and manufactured by 3D software. Compared with the traditional SERF atomic magnetometer, it achieves the sensitivity that is not lower than 34 fT/Hz1/2 at multiple frequency points. The problem of combining the complex optical structure with atomic magnetometer can be solved. It provides a good foundation for further improving the performance of the magnetometer by using F-P integral cavity in the future. © 2020, Science Press. All right reserved.
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页码：43 / 49
页数：6
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