Relativistic photoionization with elliptically polarized laser fields in the ultraviolet region

Abstract

An alternative and powerful Schrödinger-like equation for describing beyond dipole laser-matter interactions is derived. It is shown that this particular formulation is numerically very efficient with respect to computational effort and convergence rate of the solutions. Furthermore, and more importantly, its nonrelativistic form turns out to be more compatible with relativity than what seems to be the case with the more common formulations of the nonrelativistic light-matter interaction. Moreover, an extension of this interaction form into the relativistic region preserves, to a large extent, the numerical efficiency.