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Laser driven shock experiments at PALS

  • D. Batani
  • , H. Stabile
  • , A. Ravasio
  • , T. Desai
  • , G. Lucchini
  • , F. Strati
  • , J. Ullschmied
  • , E. Krousky
  • , J. Skala
  • , B. Kralikova
  • , M. Pfeifer
  • , C. Kadlec
  • , T. Mocek
  • , A. Präg
  • , H. Nishimura
  • , Y. Ochi
  • , V. Zvorykin
  • University of Milano-Bicocca
  • PALS Research Centre
  • Osaka University
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences

Research output: Contribution to journalConference articlepeer-review

Abstract

Here we discuss the results of the experiments performed using the Prague Asterix Laser System (PALS) of wavelength 0.44 μm (3ω of Iodine laser) and energy ≈ 250 J in 450 ps (FWHM). Two sets of experiments were carried out, firstly, generation of high quality shocks which were steady in time and uniform in space using Phase Zone Plates (PZP), to establish the scaling laws of shock pressure Vs. laser intensity for aluminum foil target of thickness 8 μm. Our results show a good agreement with the delocalized laser absorption model. Secondly, measurements of the Equation of State of carbon compressed by shocks at megabars of pressure have been realized. Equation of State were obtained for carbon using the impedance mismatch technique. Step targets allowed the simultaneous measurements of shock velocity in two different materials. Aluminum was used as a reference material and relative EOS data for carbon have been obtained up to ≈ 14 Mbar pressure.

Original languageEnglish
Pages (from-to)266-274
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5399
DOIs
Publication statusPublished - 1 Jun 2004
Externally publishedYes
EventLaser-Assisted Micro- and Nanotechnologies 2003 - St. Petersburg, Russian Federation
Duration: 29 Jun 20033 Jul 2003

Keywords

  • Equation of state of carbon
  • Impedance mismatch technique
  • Rear target luminosity
  • Shock pressure scaling
  • Streak images

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