Binary and recoil collisions in strong field double ionization of helium

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.99.263002
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TypeArticle
Journal titlePhysical Review Letters
ISSN0031-9007
Volume99
Issue26
Article number263002
SubjectCorrelation methods; Electron beams; Ionization; Momentum transfer; Ab initio solutions; Microscopic dynamics; Nonsequential double ionization; Recollision process; Helium
AbstractWe have investigated the correlated momentum distribution of both electrons from nonsequential double ionization of helium in a 800 nm, 4.5×1014W/cm2 laser field. Using very high resolution coincidence techniques, we find a so-far unobserved fingerlike structure in the correlated electron momentum distribution. The structure can be interpreted as a signature of the microscopic dynamics in the recollision process. We identify features corresponding to the binary and recoil lobe in field-free (e,2e) collisions. This interpretation is supported by analyzing ab initio solutions of a fully correlated three-dimensional helium model. © 2007 The American Physical Society.
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LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number21276183
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Record identifier77cdbaab-c33b-4925-881e-5c68e1054226
Record created2015-09-28
Record modified2016-05-09
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