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dc.contributor.authorSansone, G.en_US
dc.contributor.authorKelkensberg, Fen_US
dc.contributor.authorPerez-Torres, J.en_US
dc.contributor.authorMorales, F.en_US
dc.contributor.authorKling, M.en_US
dc.contributor.authorSiu, W.en_US
dc.contributor.authorGhafur, O.en_US
dc.contributor.authorJohnsson, P.en_US
dc.contributor.authorSwoboda, M.en_US
dc.contributor.authorBenedetti, E.en_US
dc.contributor.authorFerrari, F.en_US
dc.contributor.authorLépine, F.en_US
dc.contributor.authorSanz-Vicario, J.en_US
dc.contributor.authorZherebtsov, S.en_US
dc.contributor.authorZnakovskaya, I.en_US
dc.contributor.authorL'Huiller, A.en_US
dc.contributor.authorIvanov, M.en_US
dc.contributor.authorNisoli, M.en_US
dc.contributor.authorMartin, F.en_US
dc.contributor.authorJ Vrakking, M.en_US
dc.date.accessioned2017-05-03T16:06:16Z
dc.date.available2017-05-03T16:06:16Z
dc.date.issued2010en_US
dc.date.modified2012-02-16T05:28:28Z
dc.identifier.issn00280836en_US
dc.identifier.doi10.1038/nature09084en_US
dc.identifier.urihttp://hdl.handle.net/10072/42757
dc.description.abstractFor the past several decades, we have been able to directly probe the motion of atoms that is associated with chemical transformations and which occurs on the femtosecond (10(-15)-s) timescale. However, studying the inner workings of atoms and molecules on the electronic timescale(1-4) has become possible only with the recent development of isolated attosecond (10(-18)-s) laser pulses(5). Such pulses have been used to investigate atomic photoexcitation and photoionization(6,7) and electron dynamics in solids(8), and in molecules could help explore the prompt charge redistribution and localization that accompany photoexcitation processes. In recent work, the dissociative ionization of H(2) and D(2) was monitored on femtosecond timescales(9) and controlled using few-cycle near-infrared laser pulses(10). Here we report a molecular attosecond pump-probe experiment based on that work: H(2) and D(2) are dissociatively ionized by a sequence comprising an isolated attosecond ultraviolet pulse and an intense few-cycle infrared pulse, and a localization of the electronic charge distribution within the molecule is measured that depends-with attosecond time resolution-on the delay between the pump and probe pulses. The localization occurs by means of two mechanisms, where the infrared laser influences the photoionization or the dissociation of the molecular ion. In the first case, charge localization arises from quantum mechanical interference involving autoionizing states and the laser-altered wavefunction of the departing electron. In the second case, charge localization arises owing to laser-driven population transfer between different electronic states of the molecular ion. These results establish attosecond pump-probe strategies as a powerful tool for investigating the complex molecular dynamics that result from the coupling between electronic and nuclear motions beyond the usual Born-Oppenheimer approximation.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.publisherNature Publishing Groupen_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom763en_US
dc.relation.ispartofpageto766en_US
dc.relation.ispartofissue7299en_US
dc.relation.ispartofjournalNatureen_US
dc.relation.ispartofvolume465en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchAtomic and Molecular Physicsen_US
dc.subject.fieldofresearchcode020201en_US
dc.titleElectron localization following attosecond molecular photoionizationen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2010
gro.hasfulltextNo Full Text


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