Publications (32)
Physics and phenomenology of weakly magnetized, relativistic astrophysical shock waves
A. Vanthieghem, M. Lemoine, I. Plotnikov +4
Weakly magnetized, relativistic collisionless shock waves are not only the natural offsprings of relativistic jets in high-energy astrophysical sources, they are also associated wi…
Experimental evidence of stimulated Raman re-scattering in laser-plasma interaction
J. -R. Marquès, F. Pérez, P. Loiseau +5
We present the first experimental evidence of stimulated Raman re-scattering of a laser in plasma: The scattered light produced by the Raman instability is intense enough to scatte…
Nonlinear dynamics of laser-generated ion-plasma gratings: a unified description
H. Peng, C. Riconda, M. Grech +2
Laser-generated plasma gratings are dynamic optical elements for the manipulation of coherent light at high intensities, beyond the damage threshold of solid-stated based materials…
From quantum to classical modelling of radiation reaction: a focus on stochasticity effects
F. Niel, C. Riconda, F. Amiranoff +2
Radiation-reaction in the interaction of ultra-relativistic electrons with a strong external electromagnetic field is investigated using a kinetic approach in the weakly quantum re…
Coulomb explosion of uniformly charged spheroids
M. Grech, R. Nuter, A. Mikaberidze +6
A simple, semi-analytical model is proposed for non-relativistic Coulomb explosion of a uniformly charged spheroid. This model allows us to derive the time-dependent particle energ…
High-quality ion beams from a nanometric double-layer target and their application to hadron-therapy
M. Grech, S. Skupin, R. Nuter +2
The production of ion beams from the interaction of a circularly polarized laser pulse with a nanometric double-layer target is discussed in the regime where all electrons are expe…
High-quality ion beams by irradiating a nano-structured target with a petawatt laser pulse
M. Grech, S. Skupin, R. Nuter +2
We present a novel laser based ion acceleration scheme, where a petawatt circularly polarized laser pulse is shot on an ultra-thin (nano-scale) double-layer target. Our scheme allo…
Key parameters for surface plasma wave excitation in the ultra-high intensity regime
S. Marini, P. S. Kleij, F. Amiranoff +3
Ultra-short high-power lasers can deliver extreme light intensities ( W/cm and s) and drive large amplitude Surface Plasma Wave (SPW) at over-dense plas…
Ultrashort high energy electron bunches from tunable surface plasma waves driven with laser wavefront rotation
S. Marini, P. S. Kleij, F. Pisani +5
We propose to use ultra-high intensity laser pulses with wavefront rotation (WFR) to produce short, ultra-intense surface plasma waves (SPW) on grating targets for electron acceler…
Multi-scale simulations of particle acceleration in astrophysical systems
A. Marcowith, G. Ferrand, M. Grech +3
This review aims at providing an up-to-date status and a general introduction to the subject of the numerical study of energetic particle acceleration and transport in turbulent as…
Electron Weibel Instability in Relativistic Counter-Streaming Plasmas with Flow-Aligned External Magnetic Fields
A. Grassi, M. Grech, F. Amiranoff +3
The Weibel instability driven by two symmetric counter-streaming relativistic electron plasmas, also referred to as current-filamentation instability, is studied in a constant and…
The Cerny conjecture for automata respecting intervals of a directed graph
M. Grech, A. Kisielewicz
The Äerný's conjecture states that for every synchronizing automaton with n states there exists a reset word of length not exceeding (n-11)^2. We prove this conjecture for a clas…
Impact of the laser spatio-temporal shape on Breit-Wheeler pair production
A. Mercuri-Baron, M. Grech, F. Niel +4
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-p…
Coherent forward stimulated Brillouin scattering of a spatially incoherent laser beam in a plasma and its effect on beam spray
M. Grech, G. Riazuelo, D. Pesme +2
A statistical model for forward stimulated Brillouin scattering (FSBS) is developed for a spatially incoherent, monochromatic, laser beam propagating in a plasma. A threshold for t…
Multiplicity of electron- and photon-seeded electromagnetic showers at multi-petawatt laser facilities
M. Pouyez, A. A. Mironov, T. Grismayer +5
Electromagnetic showers developing from the collision of an ultra-intense laser pulse with a beam of high-energy electrons or photons are investigated under conditions relevant to…
Energy dispersion in radiation pressure accelerated ion beams
M. Grech, S. Skupin, A. Diaw +2
We address the problem of energy dispersion of radiation pressure accelerated (RPA) ion beams emerging from a thin (solid) target. Two different acceleration schemes, namely phase-…
Growth rate of self-sustained QED cascades induced by intense lasers
A. Mercuri-Baron, A. A. Mironov, C. Riconda +2
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 by i…
From quantum to classical modelling of radiation reaction: a focus on the radiation spectrum
F. Niel, C. Riconda, F. Amiranoff +5
Soon available multi petawatt ultra-high-intensity (UHI) lasers will allow us to probe high-amplitude electromagnetic fields interacting with either ultra-relativistic electron bea…
Anomalous Self-Generated Electrostatic Fields in Nanosecond Laser-Plasma Interaction
L. Lancia, M. Grech, S. Weber +15
Electrostatic (E) fields associated with the interaction of a well-controlled, high-power, nanosecond laser pulse with an underdense plasma are diagnosed by proton radiography. Usi…
Effect of electron heating on self-induced transparency in relativistic intensity laser-plasma interaction
E. Siminos, M. Grech, S. Skupin +2
The effective increase of the critical density associated with the interaction of relativistically intense laser pulses with overcritical plasmas, known as self-induced transparenc…
Strong-field ionization in particle-in-cell simulations
A. A. Mironov, E. G. Gelfer, I. I. Tupitsyn +11
The inclusion of the process of multiple ionization of atoms in high-intensity electromagnetic fields into particle-in-cell (PIC) codes applied to the simulation of laser-plasma in…
Electron acceleration by laser plasma wedge interaction
S. Marini, P. S. Kleij, M. Grech +2
A new electron acceleration mechanism is identified that develops when a relativistically intense laser irradiates the wedge of an over-dense plasma. This induces a diffracted elec…
Testing strong-field QED with the avalanche precursor
A. A. Mironov, S. S. Bulanov, A. Di Piazza +8
A two-beam high-power laser facility is essential for the study of one of the most captivating phenomena predicted by strong-field quantum electrodynamics (QED) and yet unobserved…
Rotating soliton solutions in nonlocal nonlinear media
S. Skupin, M. Grech, W. Krolikowski
We discuss generic properties of rotating nonlinear wave solutions, the so called azimuthons, in nonlocal media. Variational methods allow us to derive approximative values for the…
Tracking azimuthons in nonlocal nonlinear media
F. Maucher, D. Buccoliero, S. Skupin +3
We study the formation of azimuthons, i.e., rotating spatial solitons, in media with nonlocal focusing nonlinearity. We show that whole families of these solutions can be found by…
Electron injection and acceleration into laser-driven wakefield from a solid overdense plasma target
M. Caetano de Sousa, S. Marini, M. Grech +3
A laser-plasma acceleration scheme combining electron extraction from a solid overdense target with wakefield acceleration in an adjacent underdense plasma region is presented. A l…
Numerical study of Langmuir wave coalescence in laser-plasma interaction
F. Pérez, F. Amiranoff, C. Briand +7
Type-III-burst radio signals can be mimicked in the laboratory via laser-plasma interaction. Instead of an electron beam generating Langmuir waves (LW) in the interplanetary medium…
A laser-plasma interaction experiment for solar burst studies
J. -R. Marquès, C. Briand, F. Amiranoff +7
A new experimental platform based on laser-plasma interaction is proposed to explore the fundamental processes of wave coupling at the origin of interplanetary radio emissions. It…
SMILEI: a collaborative, open-source, multi-purpose particle-in-cell code for plasma simulation
J. Derouillat, A. Beck, F. Pérez +10
SMILEI is a collaborative, open-source, object-oriented (C++) particle-in-cell code. To benefit from the latest advances in high-performance computing (HPC), SMILEI is co-developed…
Kinetic and finite ion mass effects on the transition to relativistic self-induced transparency in laser-driven ion acceleration
E. Siminos, M. Grech, B. Svedung Wettervik +1
We study kinetic effects responsible for the transition to relativistic self-induced transparency in the interaction of a circularly-polarized laser-pulse with an overdense plasma…
Simple Scalings for Various Regimes of Electron Acceleration in Surface Plasma Waves
C. Riconda, M. Raynaud, T. Vialis +1
Different electron acceleration regimes in the evanescent field of a surface plasma wave are studied by considering the interaction of a test electron with the high-frequency elect…
Properties of Pair Plasmas Emerging from Electromagnetic Showers in Matter
M. Pouyez, G. Nicotera, M. Galbiati +4
Electromagnetic showers from high-energy electron beams interacting with a target are a promising path to creating pair plasmas in the laboratory. Here, we solve analytically the k…