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Atmospheric and Oceanic Optics

2015 year, number 1

Fourier–spectroscopy of water vapor in the volume of aerogel nanopores. Part 2. Calculation of broadening and shift of spectral lines by adsorbed molecules

A.M. Solodov1, T.M. Petrova1, A.A. Solodov1,2, V.I. Starikov3,4
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
2National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
3Tomsk State University of Control Systems and Radioelectronics, 634050, 40 Lenina Prospect, Tomsk, Russia
4Yurginskiy Technological Institute (branch) of the Tomsk Polytechnic University, 652055, Kemerovo region, Jurga, st. Leningrad, 26
Keywords: water vapor, half-widths and shift of spectral lines, aerogel, nanopores

Abstract

The model proposed in the first part of paper [2] for simulation of the profile of water vapor confined in nanoporous aerogel was advanced. In the developed model, the loss of the degree of rotational freedom of the adsorbed water molecules was taken into account, the collisions with which give a strong contribution to the line broadening and shift. The half-widths and shift calculated using this model are in good agreement with experimentally determined ones.