Volume 119, Number 3, August 2017
|Number of page(s)||6|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||24 October 2017|
Generation of high pressures by short-pulse low-energy laser irradiation
1 Université Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107 F-33405 Talence, France
2 Insitute of Plasma Physics and Laser Microfusion - Hery Str. 23, 01-497 Warsaw, Poland
3 LOA (ENSTA/CNRS/École Polytechnique) - 828 Blvd. des Marechaux, 91762 - Palaiseau CEDEX, France
Received: 9 August 2017
Accepted: 23 September 2017
The goal of this paper is twofold: first, we demonstrate shock generation with ultra-short (24 fs) and low-energy (J) laser pulse, following the energy deposition in the target by fast electrons; second, we show that such shocks can be used to provide information on compressed matter. For a target with thickness we have clearly inferred the formation of a shock wave with pressure . We have also measured the color temperature of the emitting target rear side at breakout time , which is in good agreement with predictions from equation-of-state models (SESAME tables) and hydrodynamic simulations.
PACS: 52.35.Tc – Shock waves and discontinuities / 52.38.-r – Laser-plasma interactions / 52.70.-m – Plasma diagnostic techniques and instrumentation
© EPLA, 2017
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