Author:
Zastrau U.,Burian T.,Chalupsky J.,Döppner T.,Dzelzainis T.W.J.,Fäustlin R.R.,Fortmann C.,Galtier E.,Glenzer S.H.,Gregori G.,Juha L.,Lee H.J.,Lee R.W.,Lewis C.L.S.,Medvedev N.,Nagler B.,Nelson A.J.,Riley D.,Rosmej F.B.,Toleikis S.,Tschentscher T.,Uschmann I.,Vinko S.M.,Wark J.S.,Whitcher T.,Förster E.
Abstract
AbstractWe 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 1013 and 1017 W/cm2. 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.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Cited by
37 articles.
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