Quantum dynamical model of laser/surface-induced predissociation: Multiphoton-multiphonon processes and photon/photon-dressed states

By the dynamical energy populations of photon/phonon-dressed quantum system, laser-stimulated surface predissociation (LSSPD) of an adsorbed diatomic molecule, characterized by the laser pumping rates, the phonon-induced damping factor (level width), the field detuning, and the phase detuning (Landau-Zener form), is studied. The optimal detunings for the enhancement of LSSPD are shown by the numerical results of a set of coupled generalized quantum equations (GQE). The important features of LSSPD and the possible predissociation of a multilevel multistate system via multiphoton-multiphonon processes are discussed.