Theory of laser-induced chemi-ionization. II. Semiclassical limit

Publisher Website
Google Scholar
Abstract
This is an extension of a recently developed quantal theory of laser-induced Penning and associative ionization. Its purpose is to construct cross-section formulas which are specific to a semiclassical description of the heavy-particle motions. The photoionization transition amplitudes occurring in these formulas involve electric dipole matrix elements which connect the initial electronic state of two colliding atoms to the final, ionized state. Which matrix elements appear in the cross-section formulas is dependent upon how the state of the ejected photoelectron has been specified. In our previous theory this specification included both the energy and momentum (direction of motion) of the photoelectron. Here we include the cross-section formulas and collision theory which are appropriate when the direction of motion of the photoelectron is left unspecified.