Influence of realistic parameters on state-of-the-art LWFA experiments

Details Influence of realistic parameters on state-of-the-art LWFA experiments Influence of realistic parameters on state-of-the-art LWFA experiments

2012-04-05

arxiv.org/abs/1204.1170v1

Physics

Plasma Physics

16 pages, 6 figures; Accepted for publication in Plasma Physics and Controlled Fusion

Scientific paper

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 that the characteristic amplitude and scale length of longitudinal density fluctuations impacts on the final energies achieved by electron bunches. Conditions that minimize the role of the longitudinal plasma density fluctuations are found. The influence of higher order Laguerre-Gaussian laser pulses is also investigated. We find that higher order laser modes typically lead to lower energy gains. Certain combinations of higher order modes may, however, lead to higher electron energy gains.

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