Stefano Atzeni

TL;DR: In this paper, the authors show that the absolute TPD/SRS, driven at a quarter of the critical density, and convective SRS driven at lower plasma densities, are well separated in time, with absolute instabilities driven at early times of interaction and a convective backward SRS emerging at the laser peak and persisting all over the tail of the pulse.

TL;DR: Architect, a time explicit hybrid code designed to perform quick simulations for electron driven plasma wakefield acceleration, is described and a comparison with a fully three dimensional particle in cell code is reported, highlighting good agreement between the two models up to the weakly non-linear regimes.

TL;DR: In this paper, two laser-accelerated proton beams are studied by two-dimensional and three-dimensional numerical simulations, and it is shown that the energy deposited by the first proton beam can modify the density and temperature of the plasma before the arrival of the second beam allowing ignition in a zone not directly irradiated by the beams.

TL;DR: In this article, the Rayleigh-Taylor instability of the inner surface of an inertial confinement fusion shell is studied through high-resolution two-dimensional numerical simulations, where the instability is seeded by a mass displacement introduced in the simulations at the end of the implosion coasting stage.

TL;DR: In this article, the authors describe an experiment on isochoric heating of matter by intense laser-accelerated protons, which was performed using the LULI 100 TW facility with 15-20 J on target energy and > 10 19 W.cm -2 maximum focused intensity.