Quasimonoenergetic electron beams produced by colliding cross-polarized laser pulses in underdense plasmas - Physics > Plasma PhysicsReportar como inadecuado




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Abstract: The interaction of two laser pulses in an underdense plasma has proven to beable to inject electrons in plasma waves, thus providing a stable and tunablesource of electrons. Whereas previous works focused on the -beatwave- injectionscheme in which two lasers with the same polarization collide in a plasma, thispresent letter studies the effect of polarization and more specifically theinteraction of two colliding cross-polarized laser pulses. It is shown boththeoretically and experimentally that electrons can also be pre-accelerated andinjected by the stochastic heating occurring at the collision of twocross-polarized lasers and thus, a new regime of optical injection isdemonstrated. It is found that injection with cross-polarized lasers occurs athigher laser intensities.



Autor: C. Rechatin, J. Faure, A. Lifschitz, X. Davoine, E. Lefebvre, V. Malka

Fuente: https://arxiv.org/







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