锶原子冷却与光晶格装载

Laser Cooling and Optical Lattice Trapping of Strontium Atoms

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.