Electron acceleration in ultra-intense laser ($>$10$^{18}$ Wcm$^{-2})$ interactions with sub-micron structured targets

POSTER

Abstract

The use of sub-micron structure targets is an attractive method for Fast Ignition to enhance energy coupling of the laser into the fast electrons. We have studied electron acceleration using sub-micron structured targets including low-density foam and carbon nano-tube (CNT) in ultra-intense laser plasma interactions. We observe low coupling efficiency of the laser energy into high-energy electrons in present experimental conditions in spite of our previous results showing efficient electron accelerations [1]. Detailed modeling using PIC calculations with various sub-micron structured plasma are presented to understand these results. [1] A.L. Lei et al., Phys. Rev. Lett. 96 (2006) 255006.

Authors

  • Hideaki Habara

    • Graduate School of Engineering, Osaka Univ. Japan

  • Lei An-le

    • Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
    • Shanghai Institute of Optics and Fine Mechanics

  • Keitaro Endo

    • Graduate School of Engineering, Osaka Univ.

  • T. Yabuuchi

    • UCSD
    • UCSD, USA
    • University of California, San Diego

  • Takeshi Matsuoka

    • University of Michigan
    • FOCUS Center, CUOS, U. of M.
    • FOCUS Center and CUOS, Univ. of Michigan, Ann Arbor
    • Michigan Univ., USA
    • University of Michigan, Ann Arbor, MI

  • Hitoshi Sakagami

    • NIFS, Japan

  • Farhat N. Beg

    • UCSD, USA

  • Richard Stephens

    • General Atomics, USA

  • Antony Maksimchuk

    • Michigan Univ., USA

  • Karl Krushelnick

    • Michigan Univ., USA

  • Kazuo A. Tanaka

    • Graduate School of Engineering, Osaka Univ.