Signatures of the continuum electron phase in molecular strong-field photoelectron holography

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DOIResolve DOI: http://doi.org/10.1038/nphys3010
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TypeArticle
Journal titleNature Physics
ISSN1745-2473
Volume10
Issue8
Pages594600; # of pages: 7
AbstractLaser-driven electron recollision is at the heart of the rapidly growing field of attosecond science. The recollision wavepacket is qualitatively described within the strong-field approximation, which commonly assumes tunnelling ionization and plane-wave propagation of the liberated electron in the continuum. However, with increasing experimental sophistication, refinements to this simple model have become necessary. Through careful modelling and measurements of laser-induced recollision holography using aligned N 2 molecules, we demonstrate that the continuum electron wavepacket already carries a non-trivial spatial phase structure immediately following ionization. This effect is of rather general character: any molecule and any non-isotropic system that is ionized by a strong laser field will exhibit an offset in the phase of the continuum electron wavepacket. Specifically, this has important implications for any coherent scattering process in molecules, such as high-harmonic generation or laser-induced electron holography.
Publication date
PublisherMacmillan Publishers Limited
LanguageEnglish
AffiliationNational Research Council Canada; Security and Disruptive Technologies
Peer reviewedYes
NPARC number21272742
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Record identifier8a45e9a3-95fa-4d9e-975b-c24330926653
Record created2014-12-03
Record modified2016-05-09
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