摘要
双磁光阱的同步实现是利用冷原子干涉仪检验爱因斯坦等效原理的重要实验基础之一。采用高频声光调制移频方案获得了冷却囚禁^(85)Rb和^(87)Rb两种原子的激光,进而同步实现了两种原子的磁光阱。在此基础上,研究了双磁光阱中原子数与冷却光参数的关系,优化了实验参数,双磁光阱中两种原子的数目均达到10~9。
Synchronous realization of two magneto-optical traps is one of the fundamental technologies of testing Einstein＇s equivalence principle by using atom interferometers. High frequency acousto-optic modulators were used to achieve the lasers for trapping ^85Rb and ^87Rb simoutaneously, and a dual magnetooptical trap of ^85Rb and ^87Rb was realized. Based on the dual magneto-optical trap, the dependence of atom numbers in the dual magneto-optical trap on parameters of cooling laser were investigated, and optimized experimental data were obtained. The number of both species reaches to 109 in the dual magneto-optical trap.
出处
《量子电子学报》
CAS
CSCD
北大核心
2013年第2期169-174,共6页
Chinese Journal of Quantum Electronics
基金
国家自然科学基金资助项目(11074281)
国家重点基础研究发展规划课题(2010CB832805)
关键词
量子光学
双磁光阱
激光冷却
冷原子干涉仪
等效原理检验
quantum optics
dual magneto-optical trap
laser cooling
cold atom interferometer
equivalence principle test
