锶原子冷却与光晶格装载  

Laser Cooling and Optical Lattice Trapping of Strontium Atoms

作　　者：林弋戈[1,2] 王强[1,3] 林百科[1] 赵阳[1,3] 李烨[1] 臧二军[1] 李天初[1] 方占军[1] 

机构地区：[1]中国计量科学研究院时间频率计量所,北京100013 [2]北京理工大学光电学院,北京100081 [3]清华大学仪器与机械学院精密仪器与机械学系,北京100084

出　　处：《宇航计测技术》2011年第5期53-55,共3页Journal of Astronautic Metrology and Measurement

基　　金：科技部"国家重大科学研究计划"支持(课题号:2010CB922902)

摘　　要：锶原子光钟冷却实验实现原子由一级宽带冷却到二级窄线宽冷却转移二级冷却后原子温度约为2μK;晶格激光在原子冷却过程中始终开启,实现原子边冷却边装载。The Strontium cooling experiment realized to transfer atoms from the first stage broadband cooling to the second stage narrow line cooling. The temperature of the atoms after the second stage cool- ing is about 2 μK. The lattice laser is on during the cooling process, so the atoms are loaded into the lat- tice when their temperature is low enough, cooled by narrow line cooling.

关 键 词：光钟 光晶格 激光冷却 锶 碱土金属 

分 类 号：O562.3[理学—原子与分子物理] TN241[理学—物理]