Scaling electron acceleration in the bubble regime for upcoming lasers
1 University of Dusseldorf, 40225, Germany
2 University of Nizhny Novgorod, Nizhny Novgorod 603950, Russia
Received: 13 March 2014
Revised: 24 March 2014
Published online: 4 June 2014
Electron acceleration in the laser-plasma bubble appeared to be the most successful regime of laser wake field acceleration in the last decade. The laser technology became mature enough to generate short and relativistically intense pulses required to reach the bubble regime naturally delivering quasi-monoenergetic bunches of relativistic electrons. The upcoming laser technology projects are promising short pulses with many times more energy than the existing ones. The natural question is how will the bubble regime scale with the available laser energy. We present here a parametric study of laser-plasma acceleration in the bubble regime using full three dimensional particle-in-cell simulations and compare numerical results with the analytical scalings from the relativistic laser-plasma similarity theory.
© EDP Sciences, Springer-Verlag, 2014