Exchange and polarization effect in high-order harmonic imaging of molecular structures

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DOIResolve DOI: http://doi.org/10.1103/PhysRevA.82.043414
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TypeArticle
Journal titlePhysical Review A: Atomic, Molecular, and Optical Physics
Volume82
Issue4
Pages043414/1043414/12; # of pages: 12
AbstractWe analyze the importance of exchange, polarization, and electron-electron correlation in high-order harmonic generation in molecules interacting with intense laser fields. We find that electron exchange can become particularly important for harmonic emission associated with intermediate excitations in the molecular ion. In particular, for orbitals associated with two-hole one-particle excitations, exchange effects can eliminate structure-related minima and maxima in the harmonic spectra. Laser-induced polarization of the neutral molecule may also have major effects on orbital structure-related minima and maxima in the harmonic spectra. Finally, we show how exchange terms in recombination can be viewed as a shakedownlike process induced by sudden electronic excitation in the ion.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17673502
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Record identifier92edfc58-2240-4ae7-84c1-906f9813bb9a
Record created2011-04-01
Record modified2016-05-09
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