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XUV spectroscopic characterization of warm dense aluminum plasmas generated by the free-electron-laser FLASH

  • U. Zastrau
  • , T. Burian
  • , J. Chalupsky
  • , T. Döppner
  • , T. W.J. Dzelzainis
  • , R. R. Fäustlin
  • , C. Fortmann
  • , E. Galtier
  • , S. H. Glenzer
  • , G. Gregori
  • , L. Juha
  • , H. J. Lee
  • , R. W. Lee
  • , C. L.S. Lewis
  • , N. Medvedev
  • , B. Nagler
  • , A. J. Nelson
  • , D. Riley
  • , F. B. Rosmej
  • , S. Toleikis
  • T. Tschentscher, I. Uschmann, S. M. Vinko, J. S. Wark, T. Whitcher, E. Förster
  • Institut Für Optik und Quantenelektronik
  • Friedrich-Schiller University
  • Helmholtz Institut Jena
  • Center for Particle Physics
  • Institute of Physics of the Czech Academy of Sciences
  • Lawrence Livermore National Laboratory
  • School of Mathematics and Physics
  • Queen's University of Belfast
  • c/o DESY
  • National Accelerator Laboratory
  • Stanford Linear Accelerator Center
  • Lipn
  • Sorbonne Université
  • Department of Physics
  • University of Oxford
  • European XFEL GmbH

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

We report on experiments aimed at the generation and characterization of solid density plasmas at the free-electron laser FLASH in Hamburg. Aluminum samples were irradiated with XUV pulses at 13.5 nm wavelength (92 eV photon energy). The pulses with duration of a few tens of femtoseconds and pulse energy up to 100 μJ are focused to intensities ranging between 10 13 and 10 17 W/cm 2. We investigate the absorption and temporal evolution of the sample under irradiation by use of XUV and optical spectroscopy. We discuss the origin of saturable absorption, radiative decay, bremsstrahlung and atomic and ionic line emission. Our experimental results are in good agreement with simulations.

Original languageEnglish
Pages (from-to)45-56
Number of pages12
JournalLaser and Particle Beams
Volume30
Issue number1
DOIs
Publication statusPublished - 1 Mar 2012

Keywords

  • Free-electron lasers
  • Plasma diagnostics
  • Warm dense matter
  • XUV spectroscopy

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