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Rotational state selective photoionization of the H/sub 2/ molecule from B /sup 1/. sigma. /sup +//sub u/(v ' = 0,3) states

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:5174097
Selective photoionization from single rotational states of the B /sup 1/..sigma../sup +//sub u/(v' = 0 and 3) excited state of the H/sub 2/ molecule has been investigated with fixed frequency and tunable laser radiation around lambda = 266 nm. State selection of the B-state levels was achieved by tunable VUV laser excitation around lambda = 110 and 106 nm, respectively. The ionization cross section has been determined for different states, and found to be critically dependent upon the initial rotational quantum state and to show pronounced spectral structure with the ionization wavelength. At lambda/sub I/ = 266.05 nm the cross section varies between 0.23 x 10/sup -18/ and 1.2 x 10/sup -18/ cm/sup 2/, depending on the initial state.
Research Organization:
Fakultaet fuer Physik, Universitaet Bielefeld, D 4800 Bielefeld 1, West Germany
OSTI ID:
5174097
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 83:9; ISSN JCPSA
Country of Publication:
United States
Language:
English