Numerical study of picosecond soft x-ray enhancement from porous targets irradiated by double laser pulses

R. Fazeli, M. H. Mandieh, G. J. Tallents

Research output: Contribution to journalArticlepeer-review

Abstract

Simulations show enhanced free-free and free-bound x-ray emission from laser-produced plasmas for both porous and solid targets irradiated by picosecond laser pulses under different prepulse conditions. The porous targets are modeled as a thick solid substrate over-coated with a thin porous layer. Using porous targets and prepulses shows that x-ray yields can be enhanced significantly over single pulses on solid density targets. The optimum conditions of prepulse and porous layer density are investigated by simulations with a fluid and atomic physics code. (C) 2010 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)2936-2941
Number of pages6
JournalPhysics Letters A
Volume374
Issue number29
DOIs
Publication statusPublished - 28 Jun 2010

Keywords

  • Laser plasmas
  • X-ray sources
  • Porous target
  • Laser prepulse
  • COLLISIONALLY-PUMPED LASER
  • ND-YAG LASER
  • FEMTOSECOND-LASER
  • PHOTOELECTRON-SPECTROSCOPY
  • GENERATION ENHANCEMENT
  • SUBPICOSECOND LASER
  • AQUEOUS-SOLUTIONS
  • ALUMINUM PLASMA
  • SILICON TARGET
  • HIGH-INTENSITY

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