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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 orcid ; 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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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
93
issue
6
article number
061402
publisher
American Physical Society
external identifiers
  • scopus:84977575010
  • wos:000378103900002
ISSN
2469-9926
DOI
10.1103/physreva.93.061402
language
English
LU publication?
yes
id
1e0be927-9a4b-4317-b7d1-4b3b84c2a493
date added to LUP
2017-01-02 14:09:51
date last changed
2024-02-19 14:27:51
@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.}},
  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         = {{2469-9926}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  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}},
  doi          = {{10.1103/physreva.93.061402}},
  volume       = {{93}},
  year         = {{2016}},
}