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  • epjconf_ifsa2011_17007

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Enhanced energy coupling by using structured nano-wire targets

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  • H. Habara
  • Y. Mishima
  • N. Nakanii
  • S. Honda
  • M. Katayama
  • L. Gremillet
  • L. Willingale
  • A. Maksimchuk
  • K. Krushelnick
  • K. A. Tanaka


We have investigated the interaction of ultra intense laser light with a carbon nanotube (CNT) target. The experimental results show an increased electron acceleration and a very low laser reflection as compared to non-structured targets. In addition, interferograms show very weak plasma expansion in front of the CNT target whereas the flat target creates a considerable amount of preformed plasma. A 2-D PIC calculation indicates that high laser absorption is possible via a Brunel mechanism following the ponderomotive heating in the expanded plasma between nanotubes.