School of Electrical Engineering,University of South China, Hengyang, 421001
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, State Key Laboratory of Molecular Reaction Dynamics, Dalian, 116023
[郭玮] School of Electrical Engineering,University of South China, Hengyang, 421001 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, State Key Laboratory of Molecular Reaction Dynamics, Dalian, 116023
[常志强; 李月华] School of Electrical Engineering,University of South China, Hengyang, 421001
语种：
中文
关键词：
光谱学;反应路径;速度映像成像;光缀饰态
关键词(英文)：
spectroscopy;reaction pathways;velocity map imaging;light-dressed states
Supported by National Natural Science Foundation of China,11704178； Natural Science Foundation of Hunan Province,2015JJ3104； Research Foundation of Education Bureau of Hunan Province,15B204~~；
The kinetic energy and angular distributions of H~+ as a function of 405 nm femtosecond laser intensity are experimentally measured by using velocity map imaging technique. The reaction pathways of dissociation channels,H_2~+→H~+ + H and H_2~(2+)→ H~+ + H~+,are discussed. The former is due to the direct one-photon pathway via the 1ω crossing,and the latter stems from Coulomb explosion of H_2~(2+). Ionization of H_2~+ to H_2~(2+) starts from bond softening. The relative yield of fragment peak indicates that dissociation and ionization of H_2~...
