A5026194250- Laser-Plasma Interactions and Diagnostics
- Laser-Matter Interactions and Applications
- Magnetic confinement fusion research
- Advanced Fiber Laser Technologies
- Astro and Planetary Science
- Laser-induced spectroscopy and plasma
- Solid State Laser Technologies
- Ocular and Laser Science Research
- Particle Accelerators and Free-Electron Lasers
- Laser Design and Applications
- High-pressure geophysics and materials
Sorbonne Université
2024-2025
École Polytechnique
2024-2025
University of Lisbon
2024
Laboratoire pour l'utilisation des lasers intenses
2021-2024
It was suggested [] that an avalanche of electron-positron pairs can be triggered in the laboratory by a standing wave generated intense laser fields. Here, we present general solution to long-standing problem growth rate calculation. We provide simple formula accounts for damping due pair and photon migration from region prolific generation. apply our model variety 3D field configurations including focused beams show (i) particle yield full range intensity able generate predicted, (ii)...
Electromagnetic showers developing from the collision of an ultra-intense laser pulse with a beam high-energy electrons or photons are investigated under conditions relevant to future experiments on multi-petawatt facilities. A semi-analytical model is derived that predicts shower multiplicity, i.e. number pairs produced per incident seed particle (electron gamma photon). The benchmarked against particle-in-cell simulations and shown be accurate over wide range energies (100 MeV - 40 GeV),...
It was suggested [A. R. Bell & J. G. Kirk, PRL 101, 200403 (2008)] that an avalanche of electron-positron pairs can be triggered in the laboratory by a standing wave generated intense laser fields. Here, we present general solution to long-standing problem growth rate calculation. We provide simple formula accounts for damping due pair and photon migration from region prolific generation. apply our model variety 3D field configurations including focused beams show i) particle yield full...
The forthcoming generation of multi-petawatt lasers opens the way to abundant pair production by nonlinear Breit-Wheeler process, i.e., decay a photon into an electron-positron inside intense laser field. In this paper we explore optimal conditions for in head-on collision pulse with gamma photons. role peak intensity versus focal spot size and shape is examined keeping constant energy match experimental constraints. A simple model soft-shower case, where most pairs originate from initial...