The water vapor 0.27-mkm absorption band: hypothesis of band strengthening

Alexander D. Bykov; S. S. Voronina; Michail M. Makogon

doi:10.1117/12.545194

12 January 2004 The water vapor 0.27-mkm absorption band: hypothesis of band strengthening

Alexander D. Bykov, S. S. Voronina, Michail M. Makogon

Proceedings Volume 5311, 14th Symposium on High-Resolution Molecular Spectroscopy; (2004) https://doi.org/10.1117/12.545194
Event: 14th Symposium on High-Resolution Molecular Spectroscopy, 2003, Krasnoyarsk, Russian Federation

Abstract

The analysis of interaction between the ground X¹A₁ and excited B¹A₁ electronic states of the water molecule have been made and it was shown that the centrifugal distortion near the linear HOH configuration may lead to a considerable state mixing in the case when both lower and upper state wave functions are localised near linear configuration. As a result, transitions to the high-bending states, such as (0V₂0) with V₂~20, within the ground electronic state may be intense due to intensity borrowing. This effect appears to explain the weak 0.27 mkm feature in the near UV water vapor spectrum observed early experimentally.

Citation Download Citation

Alexander D. Bykov, S. S. Voronina, and Michail M. Makogon "The water vapor 0.27-mkm absorption band: hypothesis of band strengthening", Proc. SPIE 5311, 14th Symposium on High-Resolution Molecular Spectroscopy, (12 January 2004); https://doi.org/10.1117/12.545194

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