Computation and analysis of line-mixing effects in CO2 and CO IR bands using quasiclassical theory

M. V. Tonkov; N. N. Filippov

doi:10.1117/12.131162

1 July 1992 Computation and analysis of line-mixing effects in CO₂ and CO IR bands using quasi-classical theory

M. V. Tonkov, N. N. Filippov

Proceedings Volume 1811, Tenth All-Union Symposium and School on High-Resolution Molecular Spectroscopy; (1992) https://doi.org/10.1117/12.131162
Event: Tenth All-Union Symposium and School on High Resolution Molecular Spectroscopy, 1991, Omsk, Russian Federation

Abstract

At pressures about 1 atm well separated rotational-vibrational lines of a gas have Lorentzian shapes. When the lines superimpose the absorption coefficient deviations from the sum of Lorentzian contours are often observed especially in tine wings. These deviations are usually explained by the line mixing effects which can be calculated for the central parts of bands using the impact approximat ion. In this approximat ion the transformat ion of the band shape with pressure is determined by the relaxation Γ-matrix structure.

Citation Download Citation

M. V. Tonkov and N. N. Filippov "Computation and analysis of line-mixing effects in CO₂ and CO IR bands using quasi-classical theory", Proc. SPIE 1811, Tenth All-Union Symposium and School on High-Resolution Molecular Spectroscopy, (1 July 1992); https://doi.org/10.1117/12.131162

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