X-ray and optical diagnostics of a 100-fs laser-produced plasma

Jean-Paul Geindre; Patrick Audebert; Claude J. Chenais-Popovics; Jean-Claude J. Gauthier; Rene Benattar; Jean-Paul Chambaret; Andre Mysyrowicz; Andre Antonetti

doi:10.1117/12.46904

1 October 1991 X-ray and optical diagnostics of a 100-fs laser-produced plasma

Jean-Paul Geindre, Patrick Audebert, Claude J. Chenais-Popovics, Jean-Claude J. Gauthier, Rene Benattar, Jean-Paul Chambaret, Andre Mysyrowicz, Andre Antonetti

Author Affiliations +

Proceedings Volume 1502, Industrial and Scientific Uses of High-Power Lasers; (1991) https://doi.org/10.1117/12.46904
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

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.

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Jean-Paul Geindre, Patrick Audebert, Claude J. Chenais-Popovics, Jean-Claude J. Gauthier, Rene Benattar, Jean-Paul Chambaret, Andre Mysyrowicz, and 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); https://doi.org/10.1117/12.46904

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