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Etude des processus non-linéaires dans les atomes complexes en interaction avec un champ XUV intense et bref

Abstract : Theoretical study of the interaction between two and three- active electron systems with an ultra-short (10^-15 to 10^-18 s) high intensity (10^13 to 10^15 W.cm-2) pulse in the XUV domain. Our approach is based on the resolution of the time dependent Schrödinger equation (TDSE). We use a spectral approach to resolve the TDSE and B-splines functions are used to represent the atomic orbitals. We study two-photon double ionization (TPDI) of helium in fundamental and 1s2s excited states. Various models are studied to treat the case of ultra-short pulses. Finally, we investigate TPDI of lithium, a three active electron system. We compare TPDI of Li and He(1s2s) in the sequential regime, the case of direct TPDI of He and Li is also investigated.
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https://tel.archives-ouvertes.fr/tel-00748138
Contributor : François Reynal <>
Submitted on : Sunday, November 4, 2012 - 10:19:07 PM
Last modification on : Thursday, July 26, 2018 - 12:07:42 PM
Long-term archiving on: : Tuesday, February 5, 2013 - 3:38:47 AM

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  • HAL Id : tel-00748138, version 1

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François Reynal. Etude des processus non-linéaires dans les atomes complexes en interaction avec un champ XUV intense et bref. Physique Atomique [physics.atom-ph]. Université Sciences et Technologies - Bordeaux I, 2012. Français. ⟨tel-00748138⟩

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