激光技术2016，Vol.40Issue(5)：691-694,4.DOI:10.7510/jgjs.issn.1001-3806.2016.05.015
铷原子磁力仪最佳抽运光强的研究
Research of optimal pump light intensity in rubidium atomic magnetometers
摘要
Abstract
In order to obtain the optimal pump light intensity of a rubidium atomic magnetometer and improve its sensitivity , the relationships among the polarization , signal to noise ratio , sensitivity of magnetometer and pump light intensity were analyzed . An experimental system was designed .Transverse relaxation time and longitudinal relaxation time of a 20mm diameter spherical vapor cell with different pump light intensity were measured by using free induction decay method .The corresponding polarization data was calculated and the fitting curves of polarization , signal to noise ratio , sensitivity influenced by pump light intensity were received.The results show that the optimal pump light intensity is optimum in the rubidium atomic magnetometer under the pump light intensity of about 10mW/cm2 .It will be helpful for using the pump light effectively and optimizing sensitivity of the rubidium atomic magnetometers further .关键词
量子光学/原子磁力仪/极化/横向弛豫时间/纵向弛豫时间Key words
quantum optics/atomic magnetometer/polarization/transverse relaxation time/longitudinal relaxation time分类
数理科学引用本文复制引用
李佳佳,丁志超,汪之国,肖光宗,胡绍民..铷原子磁力仪最佳抽运光强的研究[J].激光技术,2016,40(5):691-694,4.基金项目
国防科学技术大学科研计划资助项目 （）
