Abstract

We review recent developments in multiphoton ionization (MP1) in superintense, high-frequency laser fields. We begin by discussing a fairly well-known high-frequency iteration scheme in increasing powers of the inverse frequency that was developed several years ago.¹ The atom was shown to be stable, though distorted, against decay by MPI to lowest order in the frequency (i.e., the high-frequency limit).

© 1991 Optical Society of America