Femtosecond single-electron pulses generated by two-photon photoemission close to the work function

Kurzanzeige
dc.contributor.authorKasmi, Lamia
dc.contributor.authorKreier, Daniel
dc.contributor.authorBradler, Maximilian
dc.contributor.authorRiedle, Eberhard
dc.contributor.authorBaum, Peter
dc.date.accessioned2018-09-17T08:10:14Z
dc.date.available2018-09-17T08:10:14Z
dc.date.issued2015-03-03eng
dc.description.versionpublishedde
dc.identifier.doi10.1088/1367-2630/17/3/033008eng
dc.identifier.ppn511535546
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/43270
dc.language.isoengeng
dc.rightsAttribution 3.0 Unported
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectultrafast electron diffraction, 4D imaging, femtosecond electron microscopy, photoelectric effecteng
dc.subject.ddc530eng
dc.titleFemtosecond single-electron pulses generated by two-photon photoemission close to the work functioneng
dc.typeJOURNAL_ARTICLEde
dspace.entity.typePublication
kops.citation.bibtex
@article{Kasmi2015-03-03Femto-43270,
  year={2015},
  doi={10.1088/1367-2630/17/3/033008},
  title={Femtosecond single-electron pulses generated by two-photon photoemission close to the work function},
  number={3},
  volume={17},
  journal={New Journal of Physics},
  author={Kasmi, Lamia and Kreier, Daniel and Bradler, Maximilian and Riedle, Eberhard and Baum, Peter},
  note={Article Number: 033008}
}
kops.citation.iso690KASMI, Lamia, Daniel KREIER, Maximilian BRADLER, Eberhard RIEDLE, Peter BAUM, 2015. Femtosecond single-electron pulses generated by two-photon photoemission close to the work function. In: New Journal of Physics. 2015, 17(3), 033008. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/17/3/033008deu
kops.citation.iso690KASMI, Lamia, Daniel KREIER, Maximilian BRADLER, Eberhard RIEDLE, Peter BAUM, 2015. Femtosecond single-electron pulses generated by two-photon photoemission close to the work function. In: New Journal of Physics. 2015, 17(3), 033008. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/17/3/033008eng
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kops.description.abstractDiffraction and microscopy with ultrashort electron pulses can reveal atomic-scale motion during matter transformations. However, the spatiotemporal resolution is significantly limited by the achievable quality of the electron source. Here we report on the emission of femtosecond single/fewelectron pulses from a flat metal surface via two-photon photoemission at 50–100 kHz. As pump we use wavelength-tunable visible 40 fs pulses from a noncollinear optical parametric amplifier pumped by a picosecond thin-disk laser.Wedemonstrate the beneficial influence of photon energies close to the photocathode’s work function for the coherence and duration of the electron pulses. The source’s stability approaches the shot noise limit after removing second-order correlation with the driving laser power. Two-photon photoemission offers genuine advantages in minimizing emission duration and effective source size directly at the location of photoemission. It produces an unprecedented combination of coherent, ultrashort and ultrastable single/few-electron wave packets for timeresolving structural dynamics.eng
kops.description.funding{"first": "eu", "second": "647771"}
kops.description.openAccessopenaccessgoldeng
kops.flag.isPeerReviewedtrueeng
kops.flag.knbibliographyfalse
kops.identifier.nbnurn:nbn:de:bsz:352-2-1t7fupxaih88e6
kops.relation.euProjectID647771
kops.relation.uniknProjectTitleDirect Visualization of Light-Driven Atomic-Scale Carrier Dynamics in Space and Time DIVI
kops.sourcefieldNew Journal of Physics. 2015, <b>17</b>(3), 033008. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/17/3/033008deu
kops.sourcefield.plainNew Journal of Physics. 2015, 17(3), 033008. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/17/3/033008deu
kops.sourcefield.plainNew Journal of Physics. 2015, 17(3), 033008. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/17/3/033008eng
relation.isAuthorOfPublication3cf59615-e480-4e9b-ac65-0558cfb20f73
relation.isAuthorOfPublication.latestForDiscovery3cf59615-e480-4e9b-ac65-0558cfb20f73
source.bibliographicInfo.articleNumber033008eng
source.bibliographicInfo.issue3eng
source.bibliographicInfo.volume17eng
source.identifier.eissn1367-2630eng
source.periodicalTitleNew Journal of Physicseng

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