Pulsed second harmonic generation in plasma with a magnetic wiggler

Abstract

Magnetic wiggler assisted phase matched second harmonic of a Gaussian laser pulse in a plasma is studied.  The wiggler provides additional momentum required for phase matching, however this is only for a particular instant. The required wiggler wave number increases with pulse duration and plasma density. The efficiency of the process drops sharply away from the phase matching instant.

Keywords: Harmonic generation, wiggler magnetic field, phase matching

PACS Nos.: 42.65.Ky , 52.38. ± r, 52.25.Os, 42.65. ± k