Energy transfer in gas–surface scattering in the presence of a laser field

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Abstract
A classical perturbation treatment of energy transfer in low‐energy gas–surface scattering taking place in the presence of a laser field is given. The laser frequency is chosen such that all transitions except surface vibrational ones can be neglected. Surface vibrations can thus be excited by both incident gas atoms and the laser radiation. It is shown that there exists an interference effect of the gas atoms and the laser radiation in transferring energy to surface vibrations. The interference can be constructive or destructive depending on the details of the experimental conditions and the system parameters.