期刊论文

Lu, Xingqiang

英文

PHYSICA SCRIPTA

0031-8949

2014

89

2

10.1088/0031-8949/89/02/025401

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11247214, 41104094, 11174119]; Doctoral Discipline Foundation for Young Teachers in the Higher Education Institutions of Ministry of Education [20114324120002]; Research Foundation of Education Bureau of Hunan Province [12C0370]

本校为第一且通讯机构

We experimentally measured the kinetic energy and angular distributions of fragment ion H+ of H2 as a function of 810 nm femtosecond laser intensity by using velocity map imaging technique. The reaction pathways of dissociation channels H2+ →H+ + H and H22+ →H+ + H+ are proposed. The analysis of the angular distribution indicates the net two-photon pathway via the 3ωcrossing dominates over the direct one-photon pathway in channel H2+ →H+ + H. The ionization of H2+ to H22+ may be initiated by bond softening and above-threshold dissociation. The relative yield of fragment pe...