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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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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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Original Russian Text © Yu.N. Ponomarev, I.V. Ptashnik, V. Zeninari, B. Parvitte, D. Courtois, G. Durry, 2006, published in Optika i Spektroskopiya, 2006, Vol. 100, No. 5, pp. 744–750.

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Ponomarev, Y.N., Ptashnik, I.V., Zeninari, V. et al. The absorption line profiles of H2O near 1.39 μm in binary mixtures with N2, O2, and H2 at low pressures. Opt. Spectrosc. 100, 682–688 (2006). https://doi.org/10.1134/S0030400X06050079

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  • DOI: https://doi.org/10.1134/S0030400X06050079

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