Autoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulses

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dc.contributor.authorOvcharenko, Y.
dc.contributor.authorLaForge, A. C.
dc.contributor.authorLangbehn, B.
dc.contributor.authorPlekan, O.
dc.contributor.authorCucini, R.
dc.contributor.authorFinetti, P.
dc.contributor.authorO’Keeffe, P.
dc.contributor.authorIablonskyi, D.
dc.contributor.authorNishiyama, T.
dc.contributor.authorUeda, K.
dc.contributor.authorPiseri, P.
dc.contributor.authorDi Fraia, M.
dc.contributor.authorRichter, R.
dc.contributor.authorCoreno, M.
dc.contributor.authorCallegari, C.
dc.contributor.authorPrince, K. C.
dc.contributor.authorStienkemeier, F.
dc.contributor.authorMöller, T.
dc.contributor.authorMudrich, M.
dc.date.accessioned2022-02-17T15:23:14Z
dc.date.available2022-02-17T15:23:14Z
dc.date.issued2020-08-17
dc.date.updated2022-02-11T20:09:14Z
dc.description.abstractThe ionization dynamics of helium droplets irradiated by intense, femtosecond extreme ultraviolet (XUV) pulses is investigated in detail by photoelectron spectroscopy. Helium droplets are resonantly excited to atomic-like 2p states with a photon energy of 21.5 eV and autoionize by interatomic Coulombic decay (ICD). A complex evolution of the electron spectra as a function of droplet size (250 to 106 He atoms per droplet) and XUV intensity (109–1012 W cm−2) is observed, ranging from narrow atomic-like peaks that are due to binary autoionization, to an unstructured feature characteristic of electron emission from a nanoplasma. The experimental results are analyzed and interpreted with the help of a numerical simulation based on rate equations taking into account all relevant processes—multi-step ionization, electronic relaxation, ICD, secondary inelastic collisions, desorption of electronically excited atoms, and collective autoionization (CAI).en
dc.identifier.eissn1367-2630
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16439
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-15215
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc530 Physikde
dc.subject.otherHe nanodropletsen
dc.subject.otherinteratomic Coulombic decayen
dc.subject.othercollective autoionizationen
dc.subject.othernanoplasmaen
dc.titleAutoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulsesen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber083043en
dcterms.bibliographicCitation.doi10.1088/1367-2630/ab9554en
dcterms.bibliographicCitation.issue8en
dcterms.bibliographicCitation.journaltitleNew Journal of Physicsen
dcterms.bibliographicCitation.originalpublishernameIOPen
dcterms.bibliographicCitation.originalpublisherplaceBristolen
dcterms.bibliographicCitation.volume22en
tub.accessrights.dnbfreeen
tub.affiliationFak. 2 Mathematik und Naturwissenschaften>Inst. Optik und Atomare Physik>FG Cluster und Nanokristallede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Cluster und Nanokristallede
tub.affiliation.instituteInst. Optik und Atomare Physikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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