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          Institute: MPI für Kernphysik     Collection: Physics of Quantum Dynamics in Atomic Fragmentation     Display Documents

ID: 516893.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Two-photon double ionization of He and Ne with intense VUV free-electron-laser pulses
Authors:Rudenko, A.; Kurka, M.; Foucar, L.; Kühnel, K.-U.; Jiang, Y. H.; Ergler, T.; Havermeier, T.; Smolarski, M.; Schössler, S.; Cole, K.; Schöffler, M.; Dörner, R.; Zouros, T.; Düsterer, S.; Treusch, R.; Gensch, M.; Schröter, C. D.; Moshammer, R.; Ullrich, J.
Date of Publication (YYYY-MM-DD):2009
Title of Journal:Journal of Physics: Conference Series
Journal Abbrev.:J. Phys.: Conf. Ser.
Volume (in Journal):194
Issue / Number:3
Sequence Number:032008
Name of Conference/Meeting:XXVI International Conference on Photonic, Electronic and Atomic Collisions
Place of Conference/Meeting:Kalamazoo, USA
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Copyright:2009 IOP Publishing Ltd
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Two-photon double ionization of He and Ne by intense (1013–1014 W/cm2) short pulsed (~ 25 fs) 44 eV radiation delivered by the free-electron LASer at Hamburg (FLASH) has been studied using a "Reaction Microscope". We observe characteristic signatures of direct (for He) and sequential (for Ne) ionization imprinted in different momentum distributions of the doubly charged ions. For Ne we also present kinematically complete data, extracting state-selective angular asymmetry parameters and an angular correlation function of both electrons, and compare them with recent theoretical predictions.
Classification / Thesaurus:32.80.Fb Photoionization of atoms and ions 32.30.Jc Visible and ultraviolet spectra
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group of J. Ullrich/Ultra-Short Laser Pulses (K. Simeonidis)
MPI für Quantenoptik
External Affiliations:Max-Planck Advanced Study Group at CFEL, 22607 Hamburg, Germany
Institut für Kernphysik, Universität Frankfurt, 60438 Frankfurt, Germany
University of Crete, 71003 Heraklion, Greece
DESY, 22607 Hamburg, Germany
Identifiers:DOI:doi: 10.1088/1742-6596/194/3/032008
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