Time-dependent theoretical approach to the influence of laser fields on the resonance enhanced multi-photon ionization of SH radical  

作　　者：岳大光 郑晓云 刘浩 王春兴 孟庆田 

机构地区：[1]College of Physics and Electronics, Shandong Normal University

出　　处：《Chinese Physics B》2009年第4期1479-1485,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10574083);the Natural Science Foundation of Shandong Province of China (Grant No Y2006A23);Partial financial support from the National Basic Research Program of China (Grant No 2006CB806000)

摘　　要：This paper reports that the （2＋1） resonance enhanced multi-photon ionization spectra of SH radical in external fields are simulated using the split-operator scheme of time-dependent wave-packet method. Two ionic states, i.e. a1△ and b1∑＋, are involved in the simulation. It gives the simulated photoelectron spectra, the population in each electronic state, as well as the projection of the wave-packet in each electronic state on different vibrational states. These results show that the so-called four-state model can represent the experimental results well.This paper reports that the （2＋1） resonance enhanced multi-photon ionization spectra of SH radical in external fields are simulated using the split-operator scheme of time-dependent wave-packet method. Two ionic states, i.e. a1△ and b1∑＋, are involved in the simulation. It gives the simulated photoelectron spectra, the population in each electronic state, as well as the projection of the wave-packet in each electronic state on different vibrational states. These results show that the so-called four-state model can represent the experimental results well.

关 键 词：photoelectron spectra time-dependent wave-packet method four-state model multiphoton ionization 

分 类 号：O561.3[理学—原子与分子物理]