Collision-induced absorption in molecular gases: an analytical solution |
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| Affiliation: | 1. Laboratoire de Météorologie Dynamique/IPSL, CNRS, École polytechnique, Institut polytechnique de Paris, Sorbonne Université, École normale supérieure, PSL Research University, F-91120 Palaiseau, France;2. Institut des Sciences Moléculaires d''Orsay, CNRS, Université Paris-Saclay, Orsay F-91405, France;1. Applied Physics, Division of Materials Science, Department of Engineering Science and Mathematics, Luleå University of Technology, 97187 Luleå, Sweden;2. Department of Engineering Mathematics and Physics, Faculty of Engineering, Cairo University, Giza 12211, Egypt |
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| Abstract: | An analytic solution for the translational two-body contribution to the quadrupole-induced dipole correlation function is presented. It allows one to evaluate the far-infrared collision-induced absorption spectra of molecular systems, composed of quasi-spherical molecules at low density from the knowledge of few parameters derived from different experiments. The comparison with a translational correlation function extracted from the absorption spectrum of gaseous N2, under the same approximations, is also discussed. |
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