Lineshapes and dipole moments in collision-induced absorption

Author:

Birnbaum George,Brown Michael S.,Frommhold Lothar

Abstract

Wave mechanical lineshapes of collision-induced absorption spectra are computed for binary mixtures of argon with helium, neon, and krypton using theoretical dipole moments as input. Comparison with measured spectra shows satisfactory agreement except for the neon–argon mixture, for which either theory or measurement is seen to be in substantial error. Empirical models of the collision-induced dipole moment which reproduce the experimental spectra more closely than the fundamental theory are also given. Best agreement between computed and experimental lineshapes is obtained when potential models which are accurate in the repulsive region are used.

Publisher

Canadian Science Publishing

Subject

General Physics and Astronomy

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