title: Correlated multielectron dynamics in ultrafast laser pulse interactions with atoms.
abstract: We present the results of the detailed experimental study of multiple ionization of Ne and Ar by 25 and 7 fs laser pulses. Whereas in multiple ionization of Ar different mechanisms, involving field ionization steps and recollision-induced excitations, play a role, for Ne only one channel, where the highly correlated instantaneous emission of up to four electrons is triggered by a recollisional electron impact, is found to be important. Using few-cycle pulses we are able to suppress those processes that occur on time scales longer than one laser cycle.
authors.affiliation: Max-Planck-Institut für Kernphysik, D-69029 Heidelberg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Rudenko
authors.forename: K
authors.initials: K
authors.lastname: Zrost
authors.forename: B
authors.initials: B
authors.lastname: Feuerstein
authors.forename: V L B
authors.initials: VL
authors.lastname: de Jesus
authors.forename: C D
authors.initials: CD
authors.lastname: Schröter
authors.forename: R
authors.initials: R
authors.lastname: Moshammer
authors.forename: J
authors.initials: J
authors.lastname: Ullrich