Other
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrvl..50..486a&link_type=abstract
Physical Review Letters, Volume 50, Issue 7, February 14, 1983, pp.486-488
Other
37
Diffuse Spectra, Predissociation, Photodissociation, Radio-Frequency And Microwave Spectra, Radiation Mechanisms, Polarization
Scientific paper
Water molecules are photolyzed by a F2 laser at 157 nm. The nascent OH (2Π32, v=0) rotational state distribution, probed via laser-induced fluorescence, reveals a strong preference for populating the upper Λ-doublet component. The population inversion is found to be a function of both the initial temperature of the H2O as well as the final rotational state in which the OH radical is formed. These results may provide a simple mechanism for the astronomical OH maser observed by others.
Andresen P.
Ondrey G. S.
Titze B.
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