Correlated multi-electron dynamics in ultrafast laser pulse - atom interactions

Details Correlated multi-electron dynamics in ultrafast laser pulse - atom interactions Correlated multi-electron dynamics in ultrafast laser pulse - atom interactions

2004-08-13

arxiv.org/abs/physics/0408065v1

Physics

Atomic Physics

9 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.253001

We present the results of the detailed experimental study of multiple ionization of Ne and Ar by 25 and 7 fs laser pulses. For Ne the highly correlated "instantaneous" emission of up to four electrons is triggered by a recollisional electron impact, whereas in multiple ionization of Ar different mechanisms, involving field ionization steps and recollision-induced excitations, play a major role. Using few-cycle pulses we are able to suppress those processes that occur on time scales longer than one laser cycle.

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