Phys. Rev. Lett. 93, 253001 (2004) [4 pages]Correlated Multielectron Dynamics in Ultrafast Laser Pulse Interactions with AtomsReceived 10 August 2004; published 14 December 2004 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. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.253001
DOI:
10.1103/PhysRevLett.93.253001
PACS:
32.80.Rm, 32.80.Fb, 32.90.+a, 42.50.Hz
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