Phys. Rev. A 72, 045401 (2005) [4 pages]Laser intensity dependence of ion momentum distribution in strong-field double ionizationReceived 6 April 2005; published 28 October 2005 We provide the first uniform explanation basis for the laser intensity dependence of the momentum distributions that have been reported in atomic nonsequential double-ionization experiments. Our theoretical work covers laser irradiation at 780 nm and intensities in the range I=(1−6.5)×1014 W∕cm2, which are relevant to experiments. We use a completely classical method introduced previously [ Phay J. Ho, R. Panfili, S. L. Haan and J. H. Eberly Phys. Rev. Lett. 94 093002 (2005)]. Our calculated results suggest that just two distinct categories of electron trajectories are relevant. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.045401
DOI:
10.1103/PhysRevA.72.045401
PACS:
32.80.Rm, 32.60.+i
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