摘要
为提高无自旋交换弛豫(SERF)原子磁力仪的探测灵敏度,提出一种通过增加探测光在气室内部与泵浦光相互作用的光程长来提高SERF原子磁力仪探测灵敏度的方法,该方法采用在原子气室外侧搭建Herriott型多通池系统来实现复杂光路以及长光程,将系统整体放置在屏蔽筒内部,并利用3D软件对该无磁检测系统进行设计与制作。与传统型SERF原子磁力仪进行实验对比,该方案实现了在多频点的探测灵敏度不低于34 fT/Hz1/2的性能,可解决复杂光路的光学结构与原子磁力仪相结合这一问题,为未来采用F-P积分腔的形式来进一步提升磁力仪性能打下良好基础。
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 3 D 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.
作者
王言章
梁檬
Wang Yanzhang;Liang Meng(Key Laboratory for Geophysical Instrumentation of Ministry of Education,Jilin University,Changchun 130061,China;College of Instrumentation&Electrical Engineering,Jilin University,Changchun 130061,China)
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2020年第6期43-49,共7页
Chinese Journal of Scientific Instrument
基金
吉林省省校共建计划专项(SXGJQY2017-11)
吉林省科技厅项目(20180201022GX)资助
作者简介
通信作者:王言章,2002年、2005年和2010年于吉林大学分别获得学士、硕士和博士学位,现为吉林大学教授,主要研究方向为弱磁传感器、地球信息探测仪器。E-mail:yanzhang@jlu.edu.cn;梁檬,2016年于成都信息工程大学获得学士学位,现为吉林大学硕士研究生,主要研究方向为原子磁力仪。E-mail:liangmeng17@mails.jlu.edu.cn
