1. Helium broadening parameters of water vapor in the 10,200–11,200 cm−1 spectral region.
- Author
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Petrova, T.M., Solodov, A.M., Solodov, A.A., Deichuli, V.M., and Starikov, V.I.
- Subjects
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ATMOSPHERIC water vapor , *WATER spectra , *VIBRATIONAL transitions (Molecular physics) , *FOURIER transform infrared spectrophotometers , *SEMI-classical model (Atomic physics) , *VIBRATIONAL constants - Abstract
The He-broadening (γ) and shift (δ) coefficients of 76 rovibrational transitions belonging to the 3ν 1 , 3ν 3 , ν 1 + 2ν 2 + ν 3 , and 2ν 1 + ν 3 vibrational bands of H 2 O molecule were measured in the spectral range between 10,200 and 11,200 cm −1 with the spectral resolution of 0.01 cm −1 using a Bruker IFS 125HR FTIR spectrometer. The calculations of γ and δ were performed in the framework of the semi-classical method. It was shown that the vibrational dependence of the long-range as well as the short-range parts of an isotropic H 2 O-He interaction potential influence substantially the calculated broadening coefficients γ. The vibrationally and rotationally dependent analytical model for the broadening coefficients calculation is presented and discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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