Efficient start-to-end 3D envelope modeling for two-stage laser wakefield acceleration experiments

Francesco Massimo (1) , Arnaud Beck (1) , Julien Dérouillat (2) , Mickael Grech (3) , Mathieu Lobet (2) , Frédéric Pérez (3) , Imen Zemzemi (1) , Arnd Specka (1)

1 LLR - Laboratoire Leprince-Ringuet
2 MDLS - Maison de la Simulation
3 LULI - Laboratoire pour l'utilisation des lasers intenses

Three dimensional particle in cell simulations of laser wakefield acceleration require a considerable amount of resources but are necessary to have realistic predictions and to design future experiments. The planned experiments for the Apollon laser also include two stages of plasma acceleration, for a total plasma length of the order of tens of millimeters or centimeters. In this context, where traditional 3D numerical simulations would be computationally very expensive, we present the results of the application of a recently proposed envelope method, to describe the laser pulse and its interaction with the plasma without the need to resolve its high frequency oscillations. The implementation of this model in the code Smilei is described, as well as the results of benchmark simulations against standard laser simulations and applications for the design of two stage Apollon experiments.

Domaines: Physique des accélérateurs [physics.acc-ph]

Francesco Massimo, Arnaud Beck, Julien Dérouillat, Mickael Grech, Mathieu Lobet, et al.. Efficient start-to-end 3D envelope modeling for two-stage laser wakefield acceleration experiments. Plasma Phys.Control.Fusion, 2019, 61 (12), pp.124001. ⟨10.1088/1361-6587/ab49cf⟩. ⟨hal-02393454⟩