Deceleration of a continuous-wave (CW) molecular beam with a single quasi-CW semi-Gaussian laser beam  

作　　者：尹亚玲 夏勇 印建平 

机构地区：[1]State Key Laboratory of Precision Spectroscopy, Department of Physics,East China Normal University

出　　处：《Chinese Physics B》2008年第10期3672-3677,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos 10374029, 10434060 and 10674047);the National Key Basic Research and Development Program of China (Grant No 2006CB921604);the Key Basic Program of Shanghai Municipality (Grant No 07JC14017);the Program for Changjiang Scholar and Innovative Research Team;Shanghai Leading Academic Discipline Project (Grant No B408)

摘　　要：We propose a promising scheme to decelerate a CW molecular beam by using a red-detuned quasi-cw semi-Gaussian laser beam （SGB）. We study the dynamical process of the deceleration for a CW deuterated ammonia （ND3） molecular beam by Monte-Carlo simulation method. Our study shows that we can obtain a ND3 molecular beam with a relative average kinetic energy loss of about 10% and a relative output molecular number of more than 90% by using a single quasi-cw SGB with a power of 1.5kW and a maximum optical well depth of 7.33mK.We propose a promising scheme to decelerate a CW molecular beam by using a red-detuned quasi-cw semi-Gaussian laser beam （SGB）. We study the dynamical process of the deceleration for a CW deuterated ammonia （ND3） molecular beam by Monte-Carlo simulation method. Our study shows that we can obtain a ND3 molecular beam with a relative average kinetic energy loss of about 10% and a relative output molecular number of more than 90% by using a single quasi-cw SGB with a power of 1.5kW and a maximum optical well depth of 7.33mK.

关 键 词：optical Stark deceleration semi-Gaussian beam 

分 类 号：O561[理学—原子与分子物理]