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dc.contributor.authorTeichmann, Stephan M.
dc.contributor.authorSilva, Francisco
dc.contributor.authorCousin, Seth L.
dc.contributor.authorBieger, Jens
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2015-11-05T12:34:18Z
dc.date.available2015-11-05T12:34:18Z
dc.date.issued2015-06-12
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/2117/78822
dc.description.abstractWe present half-cycle cutoff features in the water window using high-order-harmonic generation (HHG) with two-cycle, carrier-envelope-phase-controlled pulses at 1.85 μm in a high-pressure neon target. A relative carrier-envelope-phase (CEP) shift of the acquired spectra at different pressures is related to an in situ slip of the CEP in the HHG target. A simple model based on the pressure-dependent dispersion of the target gas reveals the importance of the free electrons for this effect. Our analysis also reveals that the effect is relaxed at high target pressures due to plasma defocusing of the driving pulse. We show that as a consequence of the CEP slip mediated by free electrons, moderate-intensity fluctuations can have a detrimental influence on the generation and application of attosecond pulses. Our findings emphasize the potential of combining high target pressures and long driver wavelengths to reveal subtle details of the complex light-matter interaction of HHG.
dc.language.isoeng
dc.publisherAPS
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshPulse
dc.subject.otherhigh-order-harmonic generation
dc.titleImportance of intensity-to-phase coupling for water-window high-order-harmonic generation with few-cycle pulses
dc.typeArticle
dc.subject.lemacPols
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.063817
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/284464/EU/The Integrated Initiative of European Laser Research Infrastructures III/LASERLAB-EUROPE
local.citation.publicationNamePHYSICAL REVIEW A
local.citation.volume91
local.citation.number063817
local.personalitzacitaciotrue


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain