Phys. Rev. A 65, 055405 (2002) [3 pages]Spectra of atoms at nonperturbative laser intensitiesReceived 1 November 2001; revised 19 February 2002; published 8 May 2002 A recent examination of the properties of an extension of the strong-field approximation (SFA) yielded excellent results for the prediction of ion yields in an intermediate range of intensities. The implication that other predictions of the SFA can also be extended to this moderate domain of intensities is shown to be unwarranted. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.055405
DOI:
10.1103/PhysRevA.65.055405
PACS:
32.80.Rm, 42.50.Hz
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