Theory and simulations of the interactions of intense radiation
with atoms, molecules, and solids
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Published:2000-07
Issue:3
Volume:18
Page:557-562
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ISSN:0263-0346
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Container-title:Laser and Particle Beams
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language:en
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Short-container-title:Laser Part. Beams
Author:
ALVAREZ J.J. VICENTE,FERCONI M.,PANTELIDES S.T.
Abstract
We report time-dependent simulations of the evolution
of atoms, molecules, and solids in the presence of intense
electromagnetic radiation using the density functional
theory. In the case of the ionic degrees of freedom we
find that selective breaking of strong bonds may be possible
at off-resonant infrared frequencies by a novel “concerted
kick” mechanism. In the case of the electron response
we find the following: free atoms and ions under intense
infrared light respond with high harmonics in the X-ray
regime; for a free molecule (Si2), we predict
an unusual third harmonic response to a UV pulse centered
at a frequency equal to the primary electronic excitation
of the molecule; for a semiconductor (Si), we find several
odd harmonics in response to a continuous wave of subgap
infrared radiation. Prospects for future calculations are
discussed.
Publisher
Hindawi Limited
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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