Collision induced absorption spectra for gas phase chemical reactions in a high power IR laser field

Abstract

A previously derived classical model for describing the interaction of molecular systems with high power IR lasers has been used to obtain the collision induced absorption spectrum of a state‐selected, monoenergetic reactive collision system. The spectrum can be written as the Fourier transform of a particular dipole correlation function, and both the correlation function and the absorption spectrum are considered. Examples treated are a one‐dimensional barrier problem, reactive and nonreactive collisions of H+H₂, and a modified H+H₂ potential surface that leads to a collision intermediate.