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The influence of the optical Stark shift on the two-photon excitation of the molecular hydrogen E, F/sup 1/. sigma. /sup +/ /SUB g/ state

Journal Article · · IEEE J. Quant. Electron.; (United States)

The first demonstration of the use of the optical Stark effect to secure resonance for a two-quantum process in the ultraviolet is reported. Following excitation of molecular hydrogen by 193 nm radiation, intense stimulated emission on both the Lyman and Werner bands is observed. The Werner (2-5) Q(1) transition at 117.5 nm exhibits a conversion efficiency of about0.2 percent. It is found that electron collisions with excited molecules provide the most probable mechanism for excitation of the C/sup 1/..pi.. /SUB u/ levels with a rate constant estimated to be k /SUB e/ about 7 x 10/sup -6/ cm/sup 3//s.

Research Organization:
Dept. of Physics, University of Illinois at Chicago, P.O. Box 4348, Chicago, IL 60680
OSTI ID:
6893758
Journal Information:
IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 19:12; ISSN IEJQA
Country of Publication:
United States
Language:
English