The absorption line profiles of H2O near 1.39 μm in binary mixtures with N2, O2, and H2 at low pressures |
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| Authors: | Yu N Ponomarev I V Ptashnik V Zeninari B Parvitte D Courtois G Durry |
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| Institution: | (1) Institute of Atmospheric Optics, Siberian Division, Russian Academy of Sciences, Tomsk, 634055, Russia;(2) Groupe de Spectrométrie Moléculaire et Atmosphérique, Université de Reims Champagne Ardenne, CNRS, BP 347, 51062 Reims Cedex, France |
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| Abstract: | The absorption line profiles of water vapor in binary mixtures with diatomic molecules H2, N2, and O2 have been recorded on a diode laser spectrometer. The profiles of several lines of the 101 band have been studied near 1.39 μm with a spectral resolution of 3 × 10?4 cm?1. The pressure of the binary mixtures was varied from 0 to 200 Torr. The experimental data obtained have been used to test the Voigt, Rautian-Sobel’man, and Galatry theoretical models of a spectral line profile. The coefficients of collisional narrowing have been determined from the results of the fitting. |
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