5th Smilei user & training workshop

Session

Poster session

19 Mar 2025, 13:40

ETSIAE (U. P. Madrid)

49. 2D fully kinetic simulations of dayside magnetic reconnection in the presence of cold ions and a moderate guide field

Mohammed BARAKA (Laboratoire de Physique des Plasmas (LPP - UMR 7648))

Poster

The standard conditions for magnetic reconnection are usually antiparallel magnetic field configurations with a shear angle of $180^{\circ}$. Reconnection is often observed with an additional out-of-plane component of the magnetic field (guide field). We performed two sets of 2D fully kinetic simulations using SMILEI code of asymmetric reconnection. The first set was performed initially by...

54. Angular Momentum transfer by relativistic ponderomotive force in tightly focused beams

Jérémy La Porte (LULI)

Poster

In the context of magnetic field generation in plasma, we study the process of Angular Momentum (AM) transfer from a laser beam to electrons, treated here as test particles. In particular, we investigate the case of the Laguerre-Gaussian beam with Orbital Angular Momentum (OAM). For a moderately relativistic regime (dimensionless field strength $a_0 < 5$) we show that the AM transfer is mainly...

61. Enhancing direct laser driven electron acceleration using quasi static transverse sheath electric fields

Ameya Parab (Research Scholar)

Poster

Laser-driven acceleration of relativistic electron beams has gained significant attention in recent years. Among the primary techniques for electron acceleration are Direct Laser Acceleration (DLA) and Vacuum Laser Acceleration (VLA). While both methods enable electrons to achieve high energies, practical challenges arise due to dephasing between the laser pulse and the electron beam, which...

43. Interplay Between Multi-scale CR-driven Plasma Instabilities

Maxence Tabary (Sorbonne Université)

Poster

Collisionless shocks are ubiquitous in astrophysical environments and can now be reproduced in the laboratory using high-power lasers. These shocks play a crucial role in accelerating energetic particles, such as cosmic rays (CR), via a Fermi-type mechanism that relies on turbulent magnetic fields, amplified by various plasma instabilities, to confine the particles near the shock front. Using...

55. Light Utilizaton for Mater Emergence

Jan Vabek (Czech Technical University in Prague, FNSPE)

Poster

Very strong electromagnetic fields can induce electron-positron pair creation predicted by quantum electrodynamics. A possible way to demonstrate it is via the multiphoton Breit-Wheeler process in strong laser fields. The challenge in this setup is to hold seed particles in the hot-spot region of the reaction. This method using radially polarised laser pulses to trap seed electrons is studied...

56. Modular multiscale approach to modelling high-harmonic generation in gases

Jan Vabek (Czech Technical University in Prague, FNSPE; The Extreme Light Infrastructure ERIC, ELI Beamlines Facility)

Poster

The quantitative description of high-harmonic generation is a challenging task because it spans various physical scales: (a) the nonlinear propagation of the driving laser pulse, (b) the quantum-mechanical single-atom response that produces the harmonic field, (c) and the collective contribution of all microscopic emitters to the macroscopic high-harmonic signal. We present a modular...

60. Particle in cell simulations of laser absorption in low density foams

Antonio Zurzolo (Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy)

Poster

Low-density foam targets play an important tole in inertial confinement fusion (ICF)research, having been proposed as ablators for the fusion capsule. Due to their non-trivial internal structure, they can enhance absorption and reduce hydrodynamic instabilities. The interaction of intense lasers with the foam micro-structure, made by solid filaments and voids, presents unique challenges in...

44. Secondary sources from laser wakefield acceleration in pump-depletion dominated regime

Maxim Andronic (ELI-np)

Poster

Efficient neutron production from laser-accelerated electrons is crucial for advancing applications in science and technology. This work explores optimal configurations for maximizing neutron yields using Monte Carlo simulations informed by Particle-in-Cell (PIC) outputs. A high-resolution PIC simulation, inspired by the work of V. Horný et al. [Phys. Rev. E 110, 035202], was performed using...

51. Simulation study of the ECRIPAC accelerator concept

Andrea Cernuschi (CNRS-LPSC, Université Grenoble Alpes)

Poster

The Electron Cyclotron Resonance Ion Plasma Accelerator (ECRIPAC) is a novel accelerator concept developed by R. Geller and K. Golovanivsky for an ECR plasma device able to produce very energetic pulsed ion beams. The advantages of this device include compact dimensions and the possibility to adjust the ions’ energy, making it suitable to a wide array of applications. Due to the considerable...

59. Study of the mechanisms at the origin of radio solar bursts by laser-plasma interaction

Louise CORNET (LULI)

Poster

Solar radio bursts (SRB), linked to intense solar events, are electromagnetic emissions resulting from instabilities (like the Langmuir decay instability) and wave couplings (such as the two-plasmon coalescence). They mainly appear at the plasma frequency ($\omega_p$) and its first harmonic ($2\omega_p$), $\omega_p$ being the electron plasma frequency at the source of the emission. Studying...

48. Wave processes during type III solar radio burts : 2D PIC simulations

Francisco Javier Polanco Rodriguez (Laboratoire de Physique des Plasmas)

Poster

Nonlinear wave interactions as well as wave transformation processes on random plasma density inhomogeneities are thought to play a central role in electromagnetic wave radiation during type III solar radio bursts, in particular by generating radio waves at both the plasma frequency $\omega_p$ and its harmonic $2\omega_p$. Large-scale and long-term 2D Particle-In-Cell (PIC) simulations,...