Abstract

Ionization supression and electron localization have been reported for very intense and very short-wavelength laser fields.¹ In this paper we present results for a one photon ionization process. We find that the responses of an atomic electron seems to fall into one of three categories as the field changes from a low value to tens of an atomic unit. In the first category ionization can be described by perturbation theory. The second category of response is characterized by a very rapid approach to nearly 100% ionization. The third category features ionization suppression and electron localization, and both of these seem to be strongly correlated with the deformation of the atomic binding potential associated with the KramersHenneberger frame transformation.²

© 1990 Optical Society of America