Mapping Molecular Orbital Symmetry on High-Order Harmonic Generation Spectrum Using Two-Color Laser Fields

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.105.053003
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TypeArticle
Journal titlePhysical Review Letters
Volume105
Issue5
Pages053003–; # of pages: 5
AbstractWe have measured high-order harmonic generation spectra of D2, N2, and CO2 by mixing orthogonally polarized 800 and 400 nm laser fields. The intensity of the high-harmonic spectrum is modulated as we change the relative phase of the two pulses. For randomly orientated molecules, the phase of the intensity modulation depends on the symmetry of the molecular orbitals from which the high harmonics are emitted. This allows us to identify the symmetry of any orbital that contributes to high-harmonic generation, even without aligning the molecule. Our approach can be a route to imaging dynamical changes in three-dimensional molecular orbitals on a time scale as short as a few hundred attoseconds
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number16925484
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Record identifier0d1ec707-41d3-4ba5-b74f-8d5a721eb7f7
Record created2011-02-25
Record modified2016-05-09
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