Dynamic interference in photoemission by chirped ultrashort extreme ultraviolett pulses

Abstract

Synopsis We investigated dynamical interference (DI) in the photoionization of hydrogen atoms in intense ultrashort chirped extreme ultraviolett (XUV) pulses by numerically solving the time-dependent Schrödinger equation(TDSE) and examined its dependence on pulse intensity, duration, and chirp. We find the pulse chirp to red shift the photoelectron spectrum and weaken the DI effect.