Two-photon double ionization of neon using an intense attosecond pulse train
(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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- author
- organization
- publishing date
- 2016-06-01
- 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}}, }