Wavelength dependence of momentum-space images of low-energy electrons generated by short intense laser pulses at high intensities

We have measured momentum-space images of low-energy electrons generated by the interaction of short intense laser pulses with argon atoms at high intensities. We have done this over a wavelength range from 400 to 800 nm. The spectra show considerable structure in both the energy and angular distrib...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2006-04, Vol.39 (8), p.1955-1964
Main Authors: Maharjan, C M, Alnaser, A S, Litvinyuk, I, Ranitovic, P, Cocke, C L
Format: Article
Language:English
Online Access:Get full text
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Summary:We have measured momentum-space images of low-energy electrons generated by the interaction of short intense laser pulses with argon atoms at high intensities. We have done this over a wavelength range from 400 to 800 nm. The spectra show considerable structure in both the energy and angular distributions of the electrons. Some, but not all, energy features can be identified as multi-photon resonances. The angular structure shows a regularity which transcends the resonant structure and may be due instead to diffraction. The complexity of the results defies easy model-dependent interpretations and invites full solutions to Schrodinger's equation for these systems.
ISSN:0953-4075
DOI:10.1088/0953-4075/39/8/013