163 citations · 775 across the 14 of their papers we have counts for
14 papers
Proton acceleration by a pair of successive ultraintense femtosecond laser pulses
Julien Ferri, Lovisa Senje, Malay Dalui +12
We investigate the target normal sheath acceleration of protons in thin aluminum targets irradiated at relativistic intensity by two time-separated ultrashort (35 fs) laser pulses.…
Plasma based helical undulator for controlled emission of circularly and elliptically polarised betatron radiationJ. Vieira, J. Martins, U. Sinha
J. Vieira, J. Martins, U. Sinha
We explore a plasma based analogue of a helical undulator capable of providing circularly and elliptically polarised betatron radiation. We focus on ionisation injection configurat…
Laser absorption via QED cascades in counter propagating laser pulses
Thomas Grismayer, Marija Vranic, Joana L. Martins +2
A model for laser light absorption in electron-positron plasmas self-consistently created via QED cascades is described. The laser energy is mainly absorbed due to hard photon emis…
Seeded QED cascades in counter propagating laser pulses
Thomas Grismayer, Marija Vranic, Joana L Martins +2
The growth rates of seeded QED cascades in counter propagating lasers are calculated with first principles 2D/3D QED-PIC simulations. The dependence of the growth rate on laser pol…
Self-modulated laser wakefield accelerators as x-ray sources
N. Lemos, J. L. Martins, F. S. Tsung +5
The development of a directional, small-divergence, and short-duration picosecond x-ray probe beam with an energy greater than 50 keV is desirable for high energy density science e…
Modelling radiation emission in the transition from the classical to the quantum regime
J. L. Martins, M. Vranic, T. Grismayer +3
An emissivity formula is derived using the generalised Fermi-Weizacker-Williams method of virtual photons which accounts for the recoil the charged particle experiences as it emits…