Abstract

We have solved numerically the time-dependent Schr\odinger equation for an electron in a superstrong laser field while it undergoes a collision with a model one-dimensional hydrogen atom. We show that a certain fraction of the electron can be trapped by the atom in superstrong fields. This trapped portion has a dichotomous spatial probability distribution, corresponding to an effective excitation of Kramers-Henneberger field-dressed states, which is quite resistant against subsequent detachment. By varying the incoming electron's kinetic energy these states can be selectively excited.

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