Onset and Saturation of the Spectral Intensity of Stimulated Brillouin Scattering in Inhomogeneous Laser-Produced Plasmas

Publisher Website
Google Scholar
Abstract
Measurements are reported of the spectral intensity of emissions attributed to stimulated Brillouin scattering (SBS) of 0.53 μm laser light from an inhomogeneous CH plasma, at densities of interest to laser fusion or x-ray lasers. The onset of SBS confirms recent theory, and no dependence of the saturated spectral reflectivity on density or pump strength is seen. The total reflectivity, which reaches 15%, increases with the spectral width of the SBS. These quantitative data can test theory and simulations of saturation and also have implications for the National Ignition Facility.