Laser Excitation of Wakefields in a Parabolic Plasma Channel

Details Laser Excitation of Wakefields in a Parabolic Plasma Channel Laser Excitation of Wakefields in a Parabolic Plasma Channel

2005-11-12

arxiv.org/abs/physics/0511108v1

Physics

Plasma Physics

2 pages, no figures, see also physics/0510025

Scientific paper

A Gaussian laser pulse with a square profile in time propagating in a parabolic plasma channel, exerts a ponderomotive force on electrons that drives a large amplitude electrostatic wake potential phi. An analytic solution for phi is possible when a characteristic relation is fulfilled. For pulse duration tau ~ 9 tau_p / 4, where tau_p is the plasma period, the plasma wake potential on the axis is twice the ponderomotive potential phi_0.

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