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论文类型：期刊论文

发表时间：2010-12-22

发表刊物：PHYSICAL REVIEW A

收录刊物：SCIE、Scopus

卷号：82

期号：6

ISSN号：1050-2947

摘要：We present a theoretical scheme used for investigating the formation of ultracold molecules via photoassociation with a slowly-turned-on and rapidly-turned-off (STRT) laser pulse, with Cs(2) as an example. As compared with an unshaped laser pulse, this kind of shaped laser pulse has a prominent advantage by which we can prevent the associated molecules from returning to the initial scattering state. Numerical calculations show that an efficient photoassociation can be realized with the STRT laser pulse, which is available in the current experiment as an optical tool.