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  Surface plasmon assisted electron acceleration in photoemission from gold nanopillars

Nagel, P. M., Robinson, J. S., Harteneck, B. D., Pfeifer, T., Abel, M., Prell, J. S., et al. (2013). Surface plasmon assisted electron acceleration in photoemission from gold nanopillars. Chemical Physics, 414, 106-111. doi:10.1016/j.chemphys.2012.03.013.

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 Urheber:
Nagel, Phillip M.1, 2, Autor
Robinson, Joseph S.3, Autor
Harteneck, Bruce D.4, Autor
Pfeifer, Thomas5, Autor           
Abel, Mark6, Autor           
Prell, James S.1, Autor
Neumark, Daniel M.1, 2, Autor
Kaindl, Robert A.3, Autor
Leone, Stephen R.1, 2, 7, Autor
Affiliations:
1Department of Chemistry, University of California, Berkeley, CA 94720, USA, ou_persistent22              
2Ultrafast X-Ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, ou_persistent22              
3Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, ou_persistent22              
4Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, ou_persistent22              
5Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907555              
6Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
7Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA, ou_persistent22              

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 Zusammenfassung: Electron photoemission from lithographically prepared gold nanopillars using few-cycle, 800 nm laser pulses is measured. Electron kinetic energies are observed that are higher by up to tens of eV compared to photoemission from a flat gold surface at the same laser intensities. In addition, ionization from the nanopillar sample scales like a two-photon process, while three photons are needed to overcome the work function taking into account the shortest wavelength within the laser bandwidth. A classical electron acceleration model consisting of nonlinear ionization followed by field acceleration qualitatively reproduces the electron kinetic energy data and suggests average enhanced electric fields due to the nanopillars that are between 25 and 39 times greater than the experimentally used laser fields. Implications for plasmon-enhanced attosecond streaking are discussed.

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Sprache(n): eng - English
 Datum: 2013-05-022013-03-12
 Publikationsstatus: Erschienen
 Seiten: 6
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.chemphys.2012.03.013
 Art des Abschluß: -

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Titel: Chemical Physics
  Andere : Chem. Phys.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam : North-Holland
Seiten: - Band / Heft: 414 Artikelnummer: - Start- / Endseite: 106 - 111 Identifikator: ISSN: 0301-0104
CoNE: https://pure.mpg.de/cone/journals/resource/954925509371