Investigation of stimulated Brillouin scattering under well-defined interaction conditions

Ruby-laser light scattering was used to gain spatially and temporally resolved information about plasma parameters for nanosecond CO₂ laser-plasma interaction studies. The results confirm a heating model, where heat conduction in dense model plasmas can be described classically. CO₂-laser excited stimulated Brillouin scattering could directly be shown to arise from near thermal level by simultaneous Thomson scattering with a ruby-laser, and turbulence enhanced density fluctuations could be excluded.