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On line shape measurement and simulation of rovibrational transitions of water vapour in the near infrared region
A BANDYOPADHYAY, A RAY, , P N GHOSH
Published in ELSEVIER SCIENCE BV
2005
Volume: 401
   
Issue: 43468
Pages: 135 - 139
Abstract
It is shown that use of a balanced detector based on common mode rejection improves the line shape of rovibrational transitions of water vapour considerably. The line shape can be fitted by using Voigt profile. The residuals can be reduced by using collisionally narrowed Galatry profile, but the Dicke narrowing conditions are not satisfied for water vapour in this region of spectroscopy. In such cases, the improvement of fit may become a mathematical artifice without any useful information. Ar-broadened line shape parameters of three water vapour transitions of the 2 1 1 overtone band in the 12 150 cm -1 region are presented. © 2004 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetChemical Physics Letters
PublisherData powered by TypesetELSEVIER SCIENCE BV
ISSN0009-2614