全光学高灵敏度铷原子磁力仪的研究  

All-optical high sensitive atomic magnetometer

作　　者：李曙光[1,2] 周翔[1] 曹晓超[1] 盛继腾[1] 徐云飞[1] 王兆英[1] 林强[1] 

机构地区：[1]浙江大学物理系光学研究所,杭州310027 [2]浙江科技学院测控技术与仪器系,杭州310023

出　　处：《物理学报》2010年第2期877-882,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10804097;60925022);国家重点基础研究发展计划(批准号:2006CB921403);浙江省钱江人才计划(批准号:2006R10025)资助的课题~~

摘　　要：报道了一种全光学的高灵敏度铷原子磁力仪.其原理是基于激光束与处于微弱磁场中的铷原子的相互作用.这种相互作用与铷原子所处的环境中的磁场有关,因而通过测量透过铷原子气体的激光强度的变化可以获得磁场信息.分析了该磁力仪的工作原理,建立了相应的实验装置,并对其性能进行了测试.结果表明实验结果与理论相符合.进一步研究了影响磁力仪灵敏度的一些因素,提出了优化各参数来提高磁力仪灵敏度的方法.An all-optical high sensitivity atomic magnetometer is investigated and demonstrated experimentally, of which the principle is based on the interaction between laser beam and rubidium atoms in magnetic field. This interaction is dependent on the magnetic field surrounding the Rb atom cell, therefore the magnetic field information can be obtained simply by measuring the changes of the laser power transmitted through the Rb atom cell. The principle of the atomic magnetometer is analyzed and the performance of the experimental setup is investigated. The experimental result agrees well with the theoretical predictions. Furthermore, some important factors that may affect the performance of the magnetometer are discussed, and the ways to improve the sensitivity of the atomic magnetometer are also put forward.

关 键 词：原子磁力仪 塞曼效应 光抽运 

分 类 号：TM936[电气工程—电力电子与电力传动]