Shakeup excitation during optical tunnel ionization

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.94.033003
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TypeArticle
Journal titlePhysical Review Letters
ISSN0031-9007
Volume94
Issue3
Article number33003
SubjectElectron shakes; Optical tunnel ionization; Recollision; Shakeup excitation; Asymptotic stability; Electron energy levels; Infrared radiation; Ionization; Molecular structure; Molecules; Electrons
AbstractShakeup of a two-electron system is investigated in the strong infrared laser field limit, both theoretically and experimentally. During tunnel ionization the electron shakes up a second electron to an excited bound state. Theoretically, a complete analytical theory of shakeup in intense laser fields is developed. We predict that shakeup produces one excited σu D2 + state in ≈ 105 ionization events. Shakeup is measured experimentally by using the molecular clock provided by the internuclear motion. The number of measured events is found to be in excellent agreement with theory.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number21276210
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Record identifier61b33400-da5d-4fff-a896-079b3e15c014
Record created2015-09-28
Record modified2016-05-09
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