18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of LisbonPT1.3k papers
- Universidade Técnica de LisboaPT388 papers
- Centre National de la Recherche ScientifiqueFR326 papers
- Instituto de Plasmas e Fusão NuclearPT209 papers
- European Organization for Nuclear ResearchCH202 papers
- Centro de Física Teórica de Partículas201 papers
- Instituto Politécnico de LisboaPT190 papers
- Instituto de TelecomunicaçõesPT175 papers
- Universitat de ValènciaES175 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR143 papers
- Centro de Astrofísica e GravitaçãoPT133 papers
- LIP - Laboratory of Instrumentation and Experimental Particle PhysicsPT133 papers
13 papers · 2 filters
Numerical instability due to relativistic plasma drift in EM-PIC simulations
Xinlu Xu, Peicheng Yu, Samual F. Martins +6
The numerical instability observed in the Electromagnetic-Particle-in-cell (EM-PIC) simulations with a plasma drifting with relativistic velocities is studied using both theory and…
Magnetically assisted self-injection and radiation generation for plasma based acceleration
J. Vieira, J. L. Martins, V. B. Pathak +3
It is shown through analytical modeling and numerical simulations that external magnetic fields can relax the self-trapping thresholds in plasma based accelerators. In addition, th…
The ion motion in self-modulated plasma wakefield accelerators
J. Vieira, R. A. Fonseca, W. B. Mori +1
The effects of plasma ion motion in self-modulated plasma based accelerators is examined. An analytical model describing ion motion in the narrow beam limit is developed, and confi…
Plasmoid and Kelvin-Helmholtz instabilities in Sweet-Parker current sheets
N. F. Loureiro, A. A. Schekochihin, D. A. Uzdensky
A 2D linear theory of the instability of Sweet-Parker (SP) current sheets is developed in the framework of Reduced MHD. A local analysis is performed taking into account the depend…
Convective Raman Amplification of Light Pulses Causing Kinetic Inflation in Inertial Fusion Plasmas
Ian N. Ellis, David J. Strozzi, Benjamin J. Winjum +5
We perform 1D particle-in-cell (PIC) simulations using OSIRIS, which model a short-duration (~500/ω0 FWHM) scattered light seed pulse in the presence of a constant counter-propagat…
Transverse self-modulation of ultra-relativistic lepton beams in the plasma wakefield accelerator
J. Vieira, Y. Fang, W. B. Mori +2
The transverse self-modulation of ultra-relativistic, long lepton bunches in high-density plasmas is explored through full-scale particle-in-cell simulations. We demonstrate that l…
Laser-driven shock acceleration of monoenergetic ion beams
F. Fiuza, A. Stockem, E. Boella +7
We show that monoenergetic ion beams can be accelerated by moderate Mach number collisionless, electrostatic shocks propagating in a long scale-length exponentially decaying plasma…
Three-dimensional simulations of laser-plasma interactions at ultrahigh intensities
F. Fiuza, R. A. Fonseca, L. O. Silva +3
Three-dimensional (3D) particle-in-cell (PIC) simulations are used to investigate the interaction of ultrahigh intensity lasers ( W/cm) with matter at overcritica…
Efficient modeling of laser plasma interactions in high energy density scenarios
F. Fiuza, M. Marti, R. A. Fonseca +4
We describe how a new framework for coupling a full-PIC algorithm with a reduced PIC algorithm has been implemented into the code OSIRIS. We show that OSIRIS with this new hybrid-P…
DC magnetic field generation in unmagnetized shear flows
T. Grismayer, E. P. Alves, R. Fonseca +1
The generation of DC magnetic fields in unmagnetized plasmas with velocity shear is predicted for non relativistic and relativistic scenarios either due to thermal effects or due t…
Weibel-instability-mediated collisionless shocks in laboratory with ultraintense lasers
F. Fiuza, R. A. Fonseca, J. Tonge +2
The formation of non-relativistic collisionless shocks in laboratory with ultrahigh intensity lasers is studied via \emph{ab initio} multi-dimensional particle-in-cell simulations.…
Influence of realistic parameters on state-of-the-art LWFA experiments
J. Vieira, S. F. Martins, F. Fiúza +7
We examine the influence of non-ideal plasma-density and non-Gaussian transverse laser-intensity profiles in the laser wakefield accelerator analytically and numerically. We find t…
Simulation of a wire-cylinder-plate positive corona discharge in nitrogen gas at atmospheric pressure
Alexandre A. Martins
In this work we are going to perform a simulation of a wire-cylinder-plate positive corona discharge in nitrogen gas, and compare our results with already published experimental re…