By the same authors

From the same journal

Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

Research output: Contribution to journalArticle

Published copy (DOI)

Author(s)

  • M. V. Sedov
  • A. Ya Faenov
  • A. A. Andreev
  • I. Yu Skobelev
  • S. N. Ryazantsev
  • T. A. Pikuz
  • P. Durey
  • L. Doehl
  • D. Farley
  • C. D. Baird
  • K. L. Lancaster
  • C. D. Murphy
  • N. Booth
  • C. Spindloe
  • K. Yu Platonov
  • P. Mckenna
  • R. Kodama
  • N. Woolsey
  • S. A. Pikuz

Department/unit(s)

Publication details

JournalLaser and Particle Beams
DateAccepted/In press - 22 Mar 2019
DateE-pub ahead of print (current) - 23 Apr 2019
Early online date23/04/19
Original languageEnglish

Abstract

The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.

Bibliographical note

© Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

    Research areas

  • Laser-plasma interaction, plasma line emission, structured target

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