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19 November 2015 He-broadening and shift coefficients of water vapor lines in infrared spectral region
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Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96800E (2015) https://doi.org/10.1117/12.2205562
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation
Abstract
The water vapor line broadening and shift coefficients in the ν12, ν23, ν13, 2ν3, 2ν1, 2ν23, and ν1+2ν2 vibrational bands induced by helium pressure were measured using a Bruker IFS 125HR spectrometer. The vibrational bands 2ν3 and ν1+2ν2 were investigated for the first time. The interaction potential used in the calculations of broadening and shift coefficients was chosen as the sum of pair potentials, which were modeled by the Lennard-Jones (6-12) potentials. The vibrational and rotational contributions to this potential were obtained by use of the intermolecular potential parameters and intramolecular parameters of H2O molecule. The calculated values of the broadening and shift coefficients were compared with the experimental data.
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T. M. Petrova, A. M. Solodov, A. A. Solodov, V. M. Deichuli, and V. I. Starikov "He-broadening and shift coefficients of water vapor lines in infrared spectral region ", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96800E (19 November 2015); https://doi.org/10.1117/12.2205562
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