205 citations · 514 across the 23 of their papers we have counts for
21 papers · 1 filter
High brilliance -ray generation from the laser interaction in a carbon plasma channel
Christian Heppe, Naveen Kumar
The generation of collimated, high brilliance -ray beams from a structured plasma channel target is studied by means of 2D PIC simulations. Simulation results reveal an optimum…
Radiation pressure acceleration of protons from structured thin-foil targets
Tim Arniko Meinhold, Naveen Kumar
The process of radiation pressure acceleration (RPA) of ions is investigated with the aim of suppressing the Rayleigh-Taylor like transverse instabilities in laser-foil interaction…
Non-thermal particle acceleration at highly oblique non-relativistic shocks
Naveen Kumar, Brian Reville
The non-thermal acceleration of electrons and ions at an oblique, non-relativistic shock is studied using large scale particle-in-cell (PIC) simulations in one spatial dimension. P…
Pair-beam propagation in a magnetised plasma for modelling the polarized radiation emission from gamma-ray bursts in laboratory astrophysics experiments
Ujjwal Sinha, Naveen Kumar
The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Speci…
Electronic parametric instabilities of an ultrarelativistic laser pulse in a plasma
Ferdinand Gleixner, Naveen Kumar
Electronic parametric instabilities of an ultrarelativistic circularly polarized laser pulse propagating in underdense plasmas are studied by numerically solving the dispersion rel…
Collisionless shock acceleration of quasi-monoenergetic ions in ultra-relativistic regime
Shikha Bhadoria, Naveen Kumar
Collisionless shock acceleration of carbon ions (C) is investigated in the ultra-relativistic regime of laser-plasma interaction by accounting for the radiation reaction for…