Applied Physics A

, Volume 96, Issue 1, pp 23–31

Modelling and optimisation of fs laser-produced K α sources

Authors

    • Jülich Supercomputing Centre, Institute for Advanced ComputingForschungszentrum Jülich
  • M. Mašek
    • Jülich Supercomputing Centre, Institute for Advanced ComputingForschungszentrum Jülich
    • Institute of PhysicsAcademy of Sciences of the Czech Republic
  • U. Teubner
    • Fachbereich Technik–Naturwissenschaftliche Technik–Bereich Photonik, Fachhochschule Oldenburg/Ostfriesland/WilhelmshavenUniversity of Applied Sciences
    • Institut für PhysikCarl von Ossietzky Universität Oldenburg
  • W. Lu
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • M. Nicoul
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • U. Shymanovich
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • A. Tarasevitch
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • P. Zhou
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • K. Sokolowski-Tinten
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
  • D. von der Linde
    • Institut für Experimentelle PhysikUniversität Duisburg-Essen
Article

DOI: 10.1007/s00339-009-5188-0

Cite this article as:
Gibbon, P., Mašek, M., Teubner, U. et al. Appl. Phys. A (2009) 96: 23. doi:10.1007/s00339-009-5188-0

Abstract

Recent theoretical and numerical studies of laser-driven femtosecond K α sources are presented, aimed at understanding a recent experimental campaign to optimize emission from thin coating targets. Particular attention is given to control over the laser–plasma interaction conditions defined by the interplay between a controlled prepulse and the angle of incidence. It is found that the x-ray efficiency for poor-contrast laser systems in which a large preplasma is suspected can be enhanced by using a near-normal incidence geometry even at high laser intensities. With high laser contrast, similar efficiencies can be achieved by going to larger incidence angles, but only at the expense of larger x-ray spot size. New developments in three-dimensional modelling are also reported with the goal of handling interactions with geometrically complex targets and finite resistivity.

PACS

52.38.-r 52.38.Ph 52.65.-y

Copyright information

© Springer-Verlag 2009