Numerical Simulations of Self-Induced Plasma Smoothing of Spatially Incoherent Laser Beams
Stimulated Brillouin Scattering (SBS) is a process in which the incident electromagnetic wave interacts with the ion acoustic fluctuations of the plasma resulting in a scattered electromagnetic wave and a growing resonant ion acoustic wave (IAW). This is a parametric instability which may produce a significant level of backscattered light. One way to reduce this level is to introduce a spatial incoherence using laser beam smoothing techniques .
KeywordsParametric Instability Stimulate Brillouin Scattering Ponderomotive Force Angular Spread Incident Electromagnetic Wave
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