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Fast ion acceleration from thin foils irradiated by ultra-high intensity, ultra-high contrast laser pulses

  • R. Prasad
  • , A. A. Andreev
  • , S. Ter-Avetisyan
  • , D. Doria
  • , K. E. Quinn
  • , L. Romagnani
  • , C. M. Brenner
  • , D. C. Carroll
  • , N. P. Dover
  • , D. Neely
  • , P. S. Foster
  • , P. Gallegos
  • , J. S. Green
  • , P. McKenna
  • , Z. Najmudin
  • , C. A.J. Palmer
  • , J. Schreiber
  • , M. J.V. Streeter
  • , O. Tresca
  • , M. Zepf
  • M. Borghesi
  • Queen's University of Belfast
  • STC Vavilov State Optical Institute
  • Max-Born-Institute
  • Central Laser Facility
  • University of Strathclyde
  • Imperial College London
  • Max-Planck Institut für Quantenoptik

Research output: Contribution to journalArticlepeer-review

Abstract

Ion acceleration resulting from the interaction of ultra-high intensity (2 × 1020 W/cm2) and ultra-high contrast (∼10 10) laser pulses with 0.05-10 m thick Al foils at normal (0) and 35 laser incidence is investigated. When decreasing the target thickness from 10 m down to 0.05 μm, the accelerated ions become less divergent and the ion flux increases, particularly at normal (0°) laser incidence on the target. A laser energy conversion into protons of ∼6.5% is estimated at 35° laser incidence. Experimental results are in reasonable agreement with theoretical estimates and can be a benchmark for further theoretical and computational work.

Original languageEnglish
Article number121504
JournalApplied Physics Letters
Volume99
Issue number12
DOIs
Publication statusPublished - 19 Sept 2011
Externally publishedYes

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