The experimental setup was given,in which,the laser was tuned 5MHz below the chromium transition by an AOM,the laser was generated by a frequency-doubled single-mode Ti:Sapphire laser.

• 利用腔外倍频的掺钛蓝宝石激光器获得与铬原子共振跃迁一致的蓝光,并通过一声光调制器(AOM)将激光失谐量调谐至低于原子共振频率5MH z处。