298 citations · 1.1k across the 17 of their papers we have counts for
18 papers
Magnetized Current Filaments as a Source of Circularly Polarized Light
U. Sinha, J. Martins, J. Vieira +3
We show that the Weibel or currente filamentation instability can lead to the emission of circularly polarized radiation. Using particle-in-cell (PIC) simulations and a radiation p…
Optical control of the topology of laser-plasma accelerators
J. Vieira, J. T. Mendonça, F. Quéré
We propose a twisted plasma accelerator capable of generating relativistic electron vortex beams with helical current profiles. The angular momentum of these vortex bunches is quan…
Magnetic field generation in plasma waves driven by co-propagating intense twisted lasers
Y. Shi, J. Vieira, R. M. G. M. Trines +3
We present a new magnetic field generation mechanism in underdense plasmas driven by the beating of two, co-propagating, Laguerre-Gaussian (LG) orbital angular momentum (OAM) laser…
Mitigation of the hose instability in plasma-wakefield accelerators
T. J. Mehrling, R. A. Fonseca, A. Martinez de la Ossa +1
Current models predict the hose instability to crucially limit the applicability of plasma-wakefield accelerators. By developing an analytical model which incorporates the evolutio…
Multidimensional Plasma Wake Excitation in the Non-linear Blowout Regime
J. Vieira, R. A. Fonseca, L. O. Silva
Plasma accelerators can sustain very high acceleration gradients. They are promising candidates for future generations of particle accelerators for several scientific, medical and…
A compact tunable polarized X-ray source based on laser-plasma helical undulators
Ji Luo, Min Chen, Ming Zeng +7
Laser wakefield accelerators have great potential as the basis for next generation compact radiation sources because their accelerating gradients are three orders of magnitude larg…