Angular distribution of stimulated Brillouin scattering from interaction of 527 nm laser with Au and Al disk targets

Experiments about interaction of 527 nm laser with disk targets were conducted on “Xingguang-Ⅱ” facility. The scattering mechanism of stimulated Brillouin scattering (SBS) were studied. The energy angular distribution of scattered lights was obtained. When the laser was smoothed, the experimental results showed that the scattered light was about one order weaker than that when the laser was not smoothed (except for back scattering). The restrain effect of beam-smoothing on scattered lights was very evident. Given the laser being smoothed, the SBS energy to the back-scattering direction became bigger. The angular distribution of scattered lights almost kept the same in all azimuth direction. When 527 nm laser interacted with Al targets, the dispersion of angular distribution of scattered