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dc.contributor.authorRanitovic, P
dc.contributor.authorTong, XM
dc.contributor.authorGramkow, B
dc.contributor.authorDe, S
dc.contributor.authorDePaola, B
dc.contributor.authorSingh, KP
dc.contributor.authorCao, W
dc.contributor.authorMagrakvelidze, M
dc.contributor.authorRay, D
dc.contributor.authorBocharova, I
dc.contributor.authorMashiko, H
dc.contributor.authorSandhu, A
dc.contributor.authorGagnon, E
dc.contributor.authorMurnane, MM
dc.contributor.authorKapteyn, HC
dc.contributor.authorLitvinyuk, I
dc.contributor.authorCocke, CL
dc.date.accessioned2017-05-03T15:37:26Z
dc.date.available2017-05-03T15:37:26Z
dc.date.issued2010
dc.date.modified2010-09-29T06:52:27Z
dc.identifier.issn1367-2630
dc.identifier.doi10.1088/1367-2630/12/1/013008
dc.identifier.urihttp://hdl.handle.net/10072/34064
dc.description.abstractAttosecond science has opened up the possibility of manipulating electrons on the ir fundamental timescales. Here, we use both theory and experi- ment to investigate ionization dynamics in helium on the attosecond timescale by simultaneously irradiating the atom with a soft x-ray attosecond pulse train (APT) and an ultrafast lase rpulse. Because the APT has resolution in both energy and time,we observe processes that could not be observed without resolu- tion in both domains simultaneously. We show that resonant absorption is impor- tant in the excitation of helium and that small changes in energies of harmonics that comprise the APT can result in large changes in the ionization process. With the help of theory, ionization pathways for the infrared-assisted excitation and ionization of helium by extreme ultraviolet (XUV) attosecond pulses have been identi?ed and simple model interpretations have been developed that should be of general applicability to more complex systems (Zewail A 2000 J. Phys. Chem. A 1045660-94).
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent2548841 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_AU
dc.publisherInstitute of Physics Publishing Ltd.
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom013008-1
dc.relation.ispartofpageto013008-12
dc.relation.ispartofjournalNew Journal of Physics
dc.relation.ispartofvolume12
dc.rights.retentionY
dc.subject.fieldofresearchAtomic and Molecular Physics
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchcode020201
dc.subject.fieldofresearchcode02
dc.titleIR-assisted ionization of helium by attosecond extreme ultraviolet radiation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2010 Institute of Physics Publishing. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorLitvinyuk, Igor


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