Publications associated with High Energy Density Physics and Inertial Fusion Energy
Direct observation of the saturation of stimulated Brillouin scattering by ion-trapping-induced frequency shifts.
Phys Rev Lett 93 (2004) 035001-
We report the first measurement of the saturation of stimulated Brillouin scattering (SBS) by an ion-trapping-induced frequency shift, which was achieved by directly measuring the amplitude and absolute frequency of SBS-driven ion-acoustic waves (IAW). A frequency shift of up to 30% and a simultaneous saturation of driven IAW and SBS reflectivity were observed. The scaling of the frequency shift with the IAW amplitude compares well with theoretical calculations. We have further measured fast 30 ps oscillations of the SBS-driven IAW amplitude induced by the frequency shift.
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