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Emission of thermally activated electrons from rare gas clusters irradiated with intense VUV light pulses from a free electron laser

Laarmann, T ; Rusek, M ; Wabnitz, H ; Schulz, Joachim LU ; de Castro, ARB ; Gurtler, P ; Laasch, W and Moller, T (2005) In Physical Review Letters 95(6).
Abstract
The ionization dynamics of Ar and Xe clusters irradiated with intense vacuum ultraviolet light from a free-electron laser is investigated using photoelectron spectroscopy. Clusters comprising between 70 and 900 atoms were irradiated with femtosecond pulses at 95 nm wavelength (similar to 13 eV photon energy) and a peak intensity of similar to 4x10(12) W/cm(2). A broad thermal distribution of emitted electrons from clusters with a maximum kinetic energy up to 30-40 eV is observed. The observation of relatively low-energy photoelectrons is in good agreement with calculations using a time-dependent Thomas-Fermi model and gives experimental evidence of an outer ionization process of the clusters, due to delayed thermoelectronic emission.
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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
95
issue
6
publisher
American Physical Society
external identifiers
  • wos:000231017700026
  • scopus:27144537720
ISSN
1079-7114
DOI
10.1103/PhysRevLett.95.063402
language
English
LU publication?
yes
id
a8637f16-eeb8-4cd2-9e89-fbd18fafd86c (old id 229507)
date added to LUP
2016-04-01 11:37:12
date last changed
2025-10-14 09:10:46
@article{a8637f16-eeb8-4cd2-9e89-fbd18fafd86c,
  abstract     = {{The ionization dynamics of Ar and Xe clusters irradiated with intense vacuum ultraviolet light from a free-electron laser is investigated using photoelectron spectroscopy. Clusters comprising between 70 and 900 atoms were irradiated with femtosecond pulses at 95 nm wavelength (similar to 13 eV photon energy) and a peak intensity of similar to 4x10(12) W/cm(2). A broad thermal distribution of emitted electrons from clusters with a maximum kinetic energy up to 30-40 eV is observed. The observation of relatively low-energy photoelectrons is in good agreement with calculations using a time-dependent Thomas-Fermi model and gives experimental evidence of an outer ionization process of the clusters, due to delayed thermoelectronic emission.}},
  author       = {{Laarmann, T and Rusek, M and Wabnitz, H and Schulz, Joachim and de Castro, ARB and Gurtler, P and Laasch, W and Moller, T}},
  issn         = {{1079-7114}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Emission of thermally activated electrons from rare gas clusters irradiated with intense VUV light pulses from a free electron laser}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.95.063402}},
  doi          = {{10.1103/PhysRevLett.95.063402}},
  volume       = {{95}},
  year         = {{2005}},
}