Optical probing of ultrafast laser-induced solid-to-overdense-plasma transitions

Autor: Yasmina Azamoum, Georg Alexander Becker, Sebastian Keppler, Guillaume Duchateau, Stefan Skupin, Mickael Grech, Fabrice Catoire, Sebastian Hell, Issa Tamer, Marco Hornung, Marco Hellwing, Alexander Kessler, Franck Schorcht, Malte Christoph Kaluza

Publikováno v: Light: Science & Applications, Vol 13, Iss 1, Pp 1-12 (2024)

Abstract Understanding the solid target dynamics resulting from the interaction with an ultrashort laser pulse is a challenging fundamental multi-physics problem involving atomic and solid-state physics, plasma physics, and laser physics. Knowledge o

Externí odkaz: https://doaj.org/article/afe9d8a341c542c98cdd31b98c85bfdf

Physics and Phenomenology of Weakly Magnetized, Relativistic Astrophysical Shock Waves

Autor: Arno Vanthieghem, Martin Lemoine, Illya Plotnikov, Anna Grassi, Mickael Grech, Laurent Gremillet, Guy Pelletier

Publikováno v: Galaxies, Vol 8, Iss 2, p 33 (2020)

Weakly magnetized, relativistic collisionless shock waves are not only the natural offsprings of relativistic jets in high-energy astrophysical sources, they are also associated with some of the most outstanding displays of energy dissipation through

Externí odkaz: https://doaj.org/article/1de35610d1544033a68e1afb40f73fe9

Simple adaptations to speed-up the Particle-In-Cell code Smilei on the ARM-based Fujitsu A64FX processor

Autor: Mathieu Lobet, Francesco Massimo, Arnaud Beck, Guillaume Bouchard, Frederic Perez, Tommaso Vinci, Mickael Grech

Publikováno v: HPCAsia 2022 Workshop
HPCAsia 2022 Workshop: International Conference on High Performance Computing in Asia-Pacific Region Workshops
HPCAsia 2022 Workshop: International Conference on High Performance Computing in Asia-Pacific Region Workshops, Jan 2022, Virtual Event Japan, France. pp.40-48, ⟨10.1145/3503470.3503475⟩

International audience; We present in a simple and pedagogic way the preliminary code adaptation made in the C++ parallel Particle-In-Cell code Smilei to speed-up vectorized algorithms for the Fujitsu ARM-based A64FX processor. We analyze the perform

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39e5594a62959a7d067eaffac3f7652c
https://hal.science/hal-03849850

Impact of the laser spatio-temporal shape on Breit-Wheeler pair production

Autor: A. Di Piazza, Mathieu Lobet, A. Mercuri-Baron, Caterina Riconda, F. Niel, Anna Grassi, Mickael Grech

Publikováno v: New Journal of Physics
New J.Phys.
New J.Phys., 2021, 23 (8), pp.085006. ⟨10.1088/1367-2630/ac1975⟩

The forthcoming generation of multi-petawatt lasers opens the way to abundant pair production by the nonlinear Breit-Wheeler process, i.e., the decay of a photon into an electron-positron pair inside an intense laser field. In this paper we explore t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e129949e3ae5bb524fa4f7e85b790f3
https://hal.archives-ouvertes.fr/hal-03261268

Ultrashort high energy electron bunches from tunable surface plasma waves driven with laser wavefront rotation

Autor: P. S. Kleij, Caterina Riconda, Mickael Grech, S. Marini, François Amiranoff, Andrea Macchi, F. Pisani, M. Raynaud

Publikováno v: Physical Review E
Physical Review E, 2021, 103 (2), ⟨10.1103/PhysRevE.103.L021201⟩
Physical Review E, 2021, 103, ⟨10.1103/physreve.103.l021201⟩
Physical Review E, American Physical Society (APS), 2021, 103 (2), ⟨10.1103/PhysRevE.103.L021201⟩
Phys. Rev. E

We propose to use ultrahigh intensity laser pulses with wave-front rotation (WFR) to produce short, ultraintense surface plasma waves (SPW) on grating targets for electron acceleration. Combining a smart grating design with optimal WFR conditions ide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cab179051638896734c2d4533e3577b
https://hal.sorbonne-universite.fr/hal-03263278/document