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Two-photon double ionization of neon using an intense attosecond pulse train

Manschwetus, B. LU ; Rading, L. LU ; Campi, F. LU ; Maclot, S. LU ; Coudert-Alteirac, H. LU ; Lahl, J. LU ; Wikmark, H. LU ; Rudawski, P. LU ; Heyl, C. M. LU and Farkas, B., et al. (2016) In Physical Review A 93(6).
Abstract
We present a demonstration of two-photon double ionization of neon using an intense extreme ultraviolet (XUV) attosecond pulse train (APT) in a photon energy regime where both direct and sequential mechanisms are allowed. For an APT generated through high-order harmonic generation (HHG) in argon we achieve a total pulse energy close to 1μJ, a central energy of 35 eV, and a total bandwidth of ∼30 eV. The APT is focused by broadband optics in a neon gas target to an intensity of 3×1012Wcm−2. By tuning the photon energy across the threshold for the sequential process the double ionization signal can be turned on and off, indicating that the two-photon double ionization predominantly occurs through a sequential process. The demonstrated... (More)
We present a demonstration of two-photon double ionization of neon using an intense extreme ultraviolet (XUV) attosecond pulse train (APT) in a photon energy regime where both direct and sequential mechanisms are allowed. For an APT generated through high-order harmonic generation (HHG) in argon we achieve a total pulse energy close to 1μJ, a central energy of 35 eV, and a total bandwidth of ∼30 eV. The APT is focused by broadband optics in a neon gas target to an intensity of 3×1012Wcm−2. By tuning the photon energy across the threshold for the sequential process the double ionization signal can be turned on and off, indicating that the two-photon double ionization predominantly occurs through a sequential process. The demonstrated performance opens up possibilities for future XUV-XUV pump-probe experiments with attosecond temporal resolution in a photon energy range where it is possible to unravel the dynamics behind direct versus sequential double ionization and the associated electron correlation effects. (Less)
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Physical Review A
volume
93
issue
6
publisher
American Physical Society (APS)
external identifiers
  • scopus:84977575010
  • wos:000378103900002
ISSN
2469-9934
DOI
10.1103/physreva.93.061402
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Unknown
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yes
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1e0be927-9a4b-4317-b7d1-4b3b84c2a493
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http://dx.doi.org/10.1103/PhysRevA.93.061402
date added to LUP
2017-01-02 14:09:51
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2017-11-12 04:27:50
@article{1e0be927-9a4b-4317-b7d1-4b3b84c2a493,
  abstract     = {We present a demonstration of two-photon double ionization of neon using an intense extreme ultraviolet (XUV) attosecond pulse train (APT) in a photon energy regime where both direct and sequential mechanisms are allowed. For an APT generated through high-order harmonic generation (HHG) in argon we achieve a total pulse energy close to 1μJ, a central energy of 35 eV, and a total bandwidth of ∼30 eV. The APT is focused by broadband optics in a neon gas target to an intensity of 3×1012Wcm−2. By tuning the photon energy across the threshold for the sequential process the double ionization signal can be turned on and off, indicating that the two-photon double ionization predominantly occurs through a sequential process. The demonstrated performance opens up possibilities for future XUV-XUV pump-probe experiments with attosecond temporal resolution in a photon energy range where it is possible to unravel the dynamics behind direct versus sequential double ionization and the associated electron correlation effects.},
  articleno    = {061402},
  author       = {Manschwetus, B. and Rading, L. and Campi, F. and Maclot, S. and Coudert-Alteirac, H. and Lahl, J. and Wikmark, H. and Rudawski, P. and Heyl, C. M. and Farkas, B. and Mohamed, T. and L'Huillier, A. and Johnsson, P.},
  issn         = {2469-9934},
  language     = {und},
  month        = {06},
  number       = {6},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A},
  title        = {Two-photon double ionization of neon using an intense attosecond pulse train},
  url          = {http://dx.doi.org/10.1103/physreva.93.061402},
  volume       = {93},
  year         = {2016},
}