Laser Excitation of Wakefields in a Parabolic Plasma Channel

الأصل · EN

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 tauₚ / 4, where tauₚ is the plasma period, the plasma wake potential on the axis is twice the ponderomotive potential phi₀.