Multiphoton Processes in Heteropolar Diatomic Molecules

Abstract
Within the framework of the Born—Oppenheimer approximation and the theory of multiphoton molecular transitions, a method is proposed for calculating matrix elements of multiphoton processes in a heteropolar diatomic molecule. The method is based on the application of the explicit expressions of the Green's functions of the internuclear potentials. Analytical expressions are derived for the two-photon transitions. Results for higher-order processes are presented in a form which is convenient for numerical computation.