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

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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