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          Institute: MPI für Physik Komplexer Systeme     Collection: Light-matter interaction     Display Documents



ID: 479331.0, MPI für Physik Komplexer Systeme / Light-matter interaction
Observation of a nearly isotropic, high-energy Coulomb explosion group in the fragmentation of D2 by short laser pulses
Authors:Staudte, A.; Cocke, C. L.; Prior, A. H.; Belkacem, A.; Ray, C.; Chong, H. W.; Glover, T. E.; Schoenlein, R. W.; Saalmann, U.
Language:English
Date of Publication (YYYY-MM-DD):2002-02
Title of Journal:Physical Review A
Journal Abbrev.:Phys. Rev. A
Volume:65
Issue / Number:2
Sequence Number of Article:020703
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We have used momentum spectroscopy to examine the production of deuteron pairs in the double ionization of D-2 molecules by a fast (<200 fs), moderately intense [(0.65-8.0) x 10(14) W/cm(2)] laser pulse. By measuring in coincidence the momentum vectors of both deuterons, we have isolated, at the lowest laser power density, a weak ionization channel characterized by Coulomb-explosion deuterons with a sum energy near 10 eV. This is much higher than has been seen in previous studies. The angular distribution of these deuterons is nearly isotropic, in contrast to previous observations that the deuterons are strongly peaked along the laser polarization. These new observations suggest a previously unobserved ionization mechanism.
External Publication Status:published
Document Type:Article
Communicated by:Heidrun Näther
Affiliations:MPI für Physik Komplexer Systeme/Finite Systems
External Affiliations:Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany; Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany; Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA; Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA; Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
Identifiers:ISI:000173879500003
ISSN:1050-2947
URL:http://ojps.aip.org/getabs/servlet/GetabsServlet?p...
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