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Proceedings Paper

Analysis of the broadening and shifting of diatomic molecules' spectral lines caused by the transitions into highly excited vibrational states
Author(s): Alexander D. Bykov; Valentina N. Stroinova
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Paper Abstract

Halfwidths and lineshifts of hydrogen fluoride molecule for the case of self-broadening are investigated for the absorption lines caused by the transitions into highly excited vibrational states near the dissociation limit. It is found the wave functions of highly excited vibrational states are delocalized. Therefore, perturbation theory series become divergent and dipole moment and polarizability matrix elements cannot be calculated accurately. The halfwidths and lineshifts are estimated in the framework of full resonance approximation for HF-HF lines belonging to the highly lying vibrational bands. It is proved, that halfwidths decrease due to the variation of dipole moment function. The halfwidths decrease riches to 12% in the 0-22 band relatively to the 0-2 band. It is found, that lineshifts increase due to the mean polarizability rising is sometimes in highly lying bands relatively to the 0-2 band.

Paper Details

Date Published: 15 December 2004
PDF: 8 pages
Proc. SPIE 5743, Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, (15 December 2004); doi: 10.1117/12.606346
Show Author Affiliations
Alexander D. Bykov, Institute of Atmospheric Optics (Russia)
Valentina N. Stroinova, Tomsk Polytechnic Univ. (Russia)


Published in SPIE Proceedings Vol. 5743:
Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gennadii G. Matvienko; Vladimir P. Lukin, Editor(s)

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