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论文类型：期刊论文

发表时间：2015-04-01

发表刊物：LASER PHYSICS LETTERS

收录刊物：SCIE、Scopus

卷号：12

期号：4

ISSN号：1612-2011

关键字：photoassociation; isotope effect; Franck-Condon; HF; DF

摘要：The photoassociation (PA) reactions of H + F -> HF and D + F -> DF are investigated by using the time-dependent quantum wave packet method. For each system, we consider four cases, where the target state is set to be vertical bar nu = 16, 17, 18, 19 >, respectively. The effects of the initial collision momentum and laser parameters, including intensity, pulse duration, and frequency, on the final association probability are calculated and discussed. It is found that the PA probability for H + F -> HF (vertical bar nu = 16, 17, 18 >) is significantly greater than that for D + F -> DF (vertical bar nu = 16, 17, 18 >), while the PA probability to vertical bar nu = 19 > for the latter system is greater than the former one. This isotope effect has been connected with the Franck-Condon overlap integral between the target vibrational state and the collision continuum state.