Contribution of recollision ionization to the cross-shaped structure in nonsequential double ionization

With the three-dimensional classical ensemble model, we investigate the correlated electron emission in nonsequential double ionization (NSDI) of argon atoms by few-cycle laser pulses. Our calculations well reproduce the experimentally observed cross-shaped structure in the correlated two-electron m...

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Bibliographic Details
Published inOptics express Vol. 21; no. 9; p. 11382
Main Authors Huang, Cheng, Zhou, Yueming, Zhang, Qingbin, Lu, Peixiang
Format Journal Article
LanguageEnglish
Published United States 06.05.2013
Subjects
Computer Simulation
Ions - chemistry
Ions - radiation effects
Lasers
Models, Chemical
Radiation Dosage
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Summary:With the three-dimensional classical ensemble model, we investigate the correlated electron emission in nonsequential double ionization (NSDI) of argon atoms by few-cycle laser pulses. Our calculations well reproduce the experimentally observed cross-shaped structure in the correlated two-electron momentum spectrum [ Nature Commun. 3, 813 (2012)]. By tracing these NSDI trajectories, we find that besides the process of recollision-induced excitation with subsequent ionization just before the next field maximum, the recollision ionization also significantly contributes to the cross-shaped structure.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.011382