Fast electron penetration in laser-irradiated solids

  • F. Y. Khattak
  • E. Garcia Saiz
  • P. Gibbon
  • A. Karmakar
  • T. W. J. Dzelzainis
  • C. L. S. Lewis
  • A. P. L. Robinson
  • M. Zepf
  • D. Riley
Regular Article
  • 143 Downloads

Abstract

In this letter we present data comparing the yield of Cu K-α radiation for foils of differing thickness irradiated with a Ti:Sapphire laser generating 40 fs pulses at 800 nm and incident at 45°. At tight focus, the yields for all thicknesses are similar, whilst away from best focus there are clear differences. We discuss the origin of these similarities and differences in terms of the penetration of fast electrons into the foil and the possible importance of refluxing of fast electrons as they reach the non-irradiated side of the foil.

Keywords

Plasma Physics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • F. Y. Khattak
    • 1
  • E. Garcia Saiz
    • 2
  • P. Gibbon
    • 3
  • A. Karmakar
    • 3
  • T. W. J. Dzelzainis
    • 2
  • C. L. S. Lewis
    • 2
  • A. P. L. Robinson
    • 4
  • M. Zepf
    • 2
  • D. Riley
    • 2
  1. 1.Department of PhysicsKohat University of Science and TechnologyKohatPakistan
  2. 2.Centre for Plasma Physics, School of Mathematics and PhysicsQueens University BelfastBelfastUK
  3. 3.Juelich Supercomputing Centre, Institute for Advanced SimulationForschungszentrum Juelich GmbHJuelichGermany
  4. 4.Central Laser FacilityRutherford Appleton LaboratoryDidcotUK

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