Collision-induced absorption in HeNe mixture

Abstract

Calculations for the collision-induced absorption in a HeNe mixture in the far infrared (200–600 cm −1) are presented. The present calculation includes an exact treatment of the collision dynamics and of the radiation field to the first order. The information used is the interatomic potential and dipole moment function. Using values of these parameters obtained from independent and extensive studies, we obtain values of the absorption coefficient which are about two orders of magnetude smaller than obtained previously. Possible causes of this large discrepancy are discussed.