%0 Journal Article
%T Experimental study of ultracold cesium atom photoassociation spectrum using an amplitude modulation technique<br>基于振幅调制的超冷铯原子高分辨光缔合光谱的实验研究
%A Wang Li-Rong
%A Ma Jie
%A Zhang Lin-Jie
%A Xiao Lian-Tuan
%A Jia Suo-Tang
%A <br>汪丽蓉
%A 马杰
%A 张临杰
%A 肖连团
%A 贾锁堂
%J 物理学报
%D 2007
%I 
%X A high resolution photoassociation spectrum of ultracold cesium atoms is reported in this paper. A photoassociation laser with its frequency red detuned below 6S1/2+6P3/2 dissociation limit acts on the cold cesium atoms in magnetic optical trap and the excited ultracold molecules generated in the photoassociation process are observed. In order to obtain a high signal-to-noise ratio, the trapping laser is amplitude modulated using acousto-optic modulator and the fluorescence signal is demodulated by lock-in technique. The results are discussed using the density matrix equations.
%K amplitude modulation
%K MOT
%K photoassociation
%K cesium atom<br>振幅调制
%K 磁光阱
%K 光缔合
%K 铯原子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1A7F80CA21754FB40DBC66E3E92F763E&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=708DD6B15D2464E8&sid=1F64ABC9FF0B1D94&eid=11C26BA236BB31E8&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=18