Nonsequential double ionization of molecules

Double ionization of diatomic molecules by short linearly polarized laser pulses is analyzed. We consider the final stage of the ionization process, that is the decay of a highly excited two electron molecule, which is formed after rescattering. The saddles of the effective adiabatic potential energ...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2005-03, Vol.71 (3), Article 033407
Hauptverfasser: Prauzner-Bechcicki, Jakub S., Sacha, Krzysztof, Eckhardt, Bruno, Zakrzewski, Jakub
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container_title Physical review. A, Atomic, molecular, and optical physics
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Sacha, Krzysztof
Eckhardt, Bruno
Zakrzewski, Jakub
description Double ionization of diatomic molecules by short linearly polarized laser pulses is analyzed. We consider the final stage of the ionization process, that is the decay of a highly excited two electron molecule, which is formed after rescattering. The saddles of the effective adiabatic potential energy close to which simultaneous escape of electrons takes place are identified. Numerical simulations of the ionization of molecules show that the process can be dominated by either sequential or nonsequential events. In order to increase the ratio of nonsequential to sequential ionizations very short laser pulses should be applied.
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subjects ATOMIC AND MOLECULAR PHYSICS
COMPUTERIZED SIMULATION
DECAY
ELECTRONS
IONIZATION
LASER RADIATION
MOLECULES
POTENTIAL ENERGY
PULSES
RESCATTERING
title Nonsequential double ionization of molecules
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