Speaker
Samuel Marini
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P5.2014.pdf
High-intensity laser-plasma interaction
S. Marini1 , M. Grech1 , M. Raynaud2 , C. Riconda1
1 LULI, Sorbonne Université, CNRS, École Polytechnique, CEA, Université Paris-Saclay,
F-75252 Paris cedex 05, France
2 Laboratoire des Solides Irradiés, CEA/DRF/IRAMIS, École Polytechnique, CNRS, Université
Paris-Saclay, F-91128 Palaiseau, France
Ultrashort high-intensity laser interaction with a sharp-edged over-dense plasma has become an
attractive mechanism for the generation of fast particles [1]. Through suitable physical condi-
tions between the laser and periodic gratings on the vacuum plasma interface, it is possible to
excite Surface Plasma Waves (SPW), increasing the absorption of the laser energy up to 75%
[2] as well as accelerating particles to the relativistic limit [2, 3]. The physical conditions for
the SPW excitation vary depending on both the plasma density and the laser intensity [3], in
particular, relativistic corrections to the electron density need to be considered. In this work,
we suggest how to take into account these characteristics theoretically in the dispersion relation
and we verify the outcoming resonant matching conditions using a two-dimensional Particle In
Cell (PIC) code [4]. These results can be used to optimize and control all possible applications
of high-intensity laser-plasma interaction [1, 2, 3].
References
[1] A. Bigongiari, M. Raynaud, C. Riconda, and A. Héron, Phys. Plasmas 20, 052701 (2013)
[2] A. Bigongiari, M. Raynaud, C. Riconda, A. Héron, and A. Macchi, Phys. Plasmas 18, 102701 (2011)
[3] M. Raynaud, A Héron, and J-C Adam, Plasma Phys. Controlled Fusion 60, 014021 (2018)
[4] J. Derouillat, A. Beck, F. Pérez, T. Vinci, M. Chiaramello, A. Grassi, M. Flé, G. Bouchard, I. Plotnikov, N.
Aunai, J. Dargent, C. Riconda, M. Grech, Computer Physics Communications 222, 351 (2018)
