Correlated multielectron dynamics in ultrafast laser pulse interactions with atoms.
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.
Rudenko
A
A
Max-Planck-Institut für Kernphysik, D-69029 Heidelberg, Germany.
Zrost
K
K
Feuerstein
B
B
de Jesus
V L B
VL
Schröter
C D
CD
Moshammer
R
R
Ullrich
J
J