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Laser excitation and ionic motion in small clusters

  • L.M. Ma
  • E. Suraud
  • P.-G. Reinhard

Abstract:

We discuss the properties of small metal and hydrogen clusters under irradiation by intense lasers. We use a fully non adiabatic model of coupled electrons and ions, based on density functional theory. We demonstrate the quality of such an approach in comparison to experimental data on atomic and molecular properties as well as to the optical response of small sodium clusters. We next address the response of small clusters to various lasers allowing to scan a broad span of dynamical regimes from the linear to the non linear domain. We finally discuss the impact of ionic motion in the case of hydrogen clusters irradiated by short laser pulses in the 10 13-1015 W cm-2 intensity range.

PACS. 36.40.-c Atomic and molecular clusters – 36.40.Cg Electronic and magnetic properties of clusters – 36.40.Vz Optical properties of clusters 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2001

Authors and Affiliations

  • L.M. Ma
    • 1
  • E. Suraud
    • 1
  • P.-G. Reinhard
    • 2
  1. 1.Laboratoire de Physique Quantique, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex, FranceFR
  2. 2.Institut für Theoretische Physik, Universität Erlangen, Staudstrasse 7, 91054 Erlangen, GermanyDE

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