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Article Dans Une Revue Journal of Chemical Physics Année : 2002

Polyatomic molecules in strong laser fields: Nonadiabatic multielectron dynamics

V Blanchet
My Ivanov
  • Fonction : Auteur
A Stolow
  • Fonction : Auteur

Résumé

We report the observation and characterization of a new nonresonant strong field ionization mechanism in polyatomic molecules: Nonadiabatic multi-electron (NME) dynamics. The strong field response of a given molecule depends on important properties such as molecular geometry and bonding, the path length of delocalized electrons and/or ionization potential as well as on basic laser pulse parameters such as wavelength and intensity. Popular quasi-static tunnelling models of strong field molecular ionization, based upon the adiabatic response of a single active electron, are demonstrated to be inadequate when electron delocalization is important. The NME ionization mechanism greatly affects molecular ionization, its fragmentation and its energetics. In addition, multi-electron effects are shown to be present even in the adiabatic long wavelength limit. (C) 2002 American Institute of Physics.
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Dates et versions

hal-01582339 , version 1 (05-09-2017)

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M Lezius, V Blanchet, My Ivanov, A Stolow. Polyatomic molecules in strong laser fields: Nonadiabatic multielectron dynamics. Journal of Chemical Physics, 2002, 117 (4), pp.1575-1588. ⟨10.1063/1.1487823⟩. ⟨hal-01582339⟩

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