Laser cooling in phase fluctuating laser field

The influence of laser linewidth ??1 on laser cooling of atoms was investigated theoretically by using a diffusing phase model. The final temperature which can be achieved by Doppler cooling or sub-Doppler cooling in phase fluctuating laser field is presented. It was found that the natural linewidth ??n of the transition used for cooling the atoms is an important quantity in evaluating the influence of ??1 under Doppler cooling mechanism, and the laser linewidth has little effect on the final temperature under sub-Doppler cooling mechanism because the laser detuning is very large in this case.EI中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)06414-421