Measurements of collisional linewidths in the ν_2 band of H_2O from Fourier-transformed flame spectra
- 20 April 1992
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 31 (12) , 1928-1936
- https://doi.org/10.1364/ao.31.001928
Abstract
The collisional widths of more than 200 transitions belonging to the ν2 band of the H2O molecule were measured by using the Fourier-transformed spectra of an air–methane flame at 2000 K. A nonlinear least-squares method was used to determine the line widths for a wide range of J (up to 28) and Ka (up to 14) quantum number values. Finally, an analysis of the results as functions of J and Ka is presented.Keywords
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