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

U. Zastrau, T. Burian, J. Chalupsky, T. Doeppner, T. W. J. Dzelzainis, R. R. Faeustlin, 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. ToleikisT. Tschentscher, I. Uschmann, S. M. Vinko, J. S. Wark, T. Whitcher, E. Foerster

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37 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 mu J 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 - Mar 2012

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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