1 October 1991 X-ray and optical diagnostics of a 100-fs laser-produced plasma
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Solid targets have been irradiated by 80 fs laser pulses at 1017 W/cm2 laser irradiance. Spectra obtained in the 0.7 - 0.9 nm wavelength range show that x ray emission occurs at near-solid electron densities (Ne $OM 1023 cm-3). The analysis of the K(alpha) emission line points out the role of hot, fast electrons in the interaction physics. A time-resolved Schlieren imaging technique shows that the ultrashort laser pulses strikes a preplasma created by the laser-amplified spontaneous emission (ASE) with an electron density gradient scale length less than 1 micrometers.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jean-Paul Geindre, Jean-Paul Geindre, Patrick Audebert, Patrick Audebert, Claude J. Chenais-Popovics, Claude J. Chenais-Popovics, Jean-Claude J. Gauthier, Jean-Claude J. Gauthier, Rene Benattar, Rene Benattar, Jean-Paul Chambaret, Jean-Paul Chambaret, Andre Mysyrowicz, Andre Mysyrowicz, Andre Antonetti, Andre Antonetti, } "X-ray and optical diagnostics of a 100-fs laser-produced plasma", Proc. SPIE 1502, Industrial and Scientific Uses of High-Power Lasers, (1 October 1991); doi: 10.1117/12.46904; https://doi.org/10.1117/12.46904

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