Calculated tabulations of H_2O line broadening by H_2O, N_2, O_2, and CO_2 at high temperature
- 1 December 1989
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 28 (23) , 5080-5087
- https://doi.org/10.1364/ao.28.005080
Abstract
We present calculations of the temperature dependence of H2O pressure broadening parameters by H2O, CO2, N2, and O2. They were made for Q-lines with a theoretical model which provides a correct treatment of close collisions and has been widely tested. The results should be useful for Raman spectra calculations. A simple law is proposed to deduce halfwidths of P- and R-ines from the Q-line results. The accuracy of this law at high temperature is demonstrated. A simple analytical representation of a constant halfwidth approximation is also given.Keywords
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