Second-harmonic generation of a linearly polarized laser pulse propagating through magnetized plasma in the presence of a planar magnetostatic wiggler
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This paper presents the second-harmonic generation of a linearly polarized laser pulse propagating through magnetized plasma embedded in a planar magnetostatic wiggler. Using the perturbation theory, the dispersion relation and non-linear current density of the laser-plasma interaction have been derived in the presence of the wiggler field. Moreover, the conversion efficiency and the amplitude of the phase mismatch for the second harmonic have been obtained. Numerical results indicate that the second-harmonic conversion efficiency significantly increases with increasing the wiggler strength. Furthermore, it is seen that the peak of the second-harmonic conversion efficiency has an increasing trend with respect to the increase in the wiggler strength. In addition, it is found that increasing the plasma frequency (or plasma density), the peak of the second-harmonic conversion efficiency gradually increases.
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