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dc.contributor.authorAskeland, Sigurdeng
dc.contributor.authorNepstad, Raymondeng
dc.contributor.authorFørre, Morteneng
dc.date.accessioned2013-10-14T11:24:49Z
dc.date.available2013-10-14T11:24:49Z
dc.date.issued2012eng
dc.PublishedPhysical Review A 85: 035404eng
dc.identifier.issn1094-1622en_US
dc.identifier.issn1050-2947en_US
dc.identifier.urihttps://hdl.handle.net/1956/7413
dc.description.abstractWe apply a recently developed ab initio numerical framework to investigate the angular distributions of the emitted electrons in the immediate proximity of the threshold for the two-photon double ionization of helium. Provided one of the electrons is emitted perpendicular to the laser polarization direction, it is found that the angular distribution of the other electron is characterized by three lobes. The results are similar to those recently reported for the corresponding process in the hydrogen negative ion [R. Nepstad and M. Førre, Phys. Rev. A 84, 021402(R) (2011)], and provide further evidence of highly correlated electron dynamics in the vicinity of the double ionization threshold.en_US
dc.language.isoengeng
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartof<a href="http://hdl.handle.net/1956/7378" target="blank">Correlated ionization processes in atoms and molecules</a>en_US
dc.titleTwo-photon double ionization of helium by attosecond laser pulses: Evidence of highly correlated electron motionen_US
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2011 American Physical Societyen_US
dc.identifier.doihttps://doi.org/10.1103/physreva.85.035404
dc.identifier.cristin934948


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