Classical model for laser-induced nonadiabatic collision processes

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Abstract
By synthesizing earlier work of Orel and Miller and of Meyer, McCurdy, and Miller, a model for describing laser‐induced electronically nonadiabatic collision processes is constructed which treats all degrees of freedom—heavy particle (i.e., translation, rotation, and vibration) electronic, and photon—by classical mechanics. This then makes it relatively easy to carry out calculations to simulate such processes within a dynamically consistent framework. Application is made to the test case H+LiF→Li+HF reaction considered by Light and Altenberger‐Siczek. The most interesting feature revealed by these classical calculations is maxima in the reaction probability as a function of initial translational energy at energies below the laser‐free threshold. It is seen that this structure can be understood as a Franck–Condon‐like effect.