A hydrogen atom in a strong laser field

We behavior of a three-dimensional hydrogen atom in a strong linearly polar ized laser field of femtosecond duration is examined by direct numerical in tegration of the time-dependent Schrodinger equation. Analysis is performed for a broad range of parameters of laser pulses and different initial atom ic states [nlm] Our investigations reveal various mechanisms behind ionizat ion suppression, which may replace each other, depending on the laser inten sity. Conditions of stabilization of different types are studied.