Abstract The influence of laser linewidth $\varGamma$1 on laser cooling of atoms was investigated theoretically by using a diffusing phase model. The final tempe rature 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 $\varGamma$n of the transition used for cooling the atoms is an important quan tity in evaluating the influence of $\varGamma$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.
Received: 09 October 1997
Accepted manuscript online:
(Calculations and mathematical techniques in atomic and molecular physics)
Fund: Project supported by the National Natural Science Foundation of China .
Cite this article:
LI YI-MIN (李义民), YANG DONG-HAI (杨东海), WANG YI-QIU (王义遒) LASER COOLING IN PHASE FLUCTUATING LASER FIELD 1998 Acta Physica Sinica (Overseas Edition) 7 414
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