Jc. Fernandez et al., OBSERVED DEPENDENCE OF STIMULATED RAMAN-SCATTERING ON ION-ACOUSTIC DAMPING IN HOHLRAUM PLASMAS, Physical review letters, 77(13), 1996, pp. 2702-2705
The reflectivity of a laser due to stimulated Raman scattering (SRS) f
rom long scale-length hohlraum plasmas is shown to depend on the dampi
ng of ion-acoustic waves. This dependence is observed in plasmas with
either low or high ionization states. Since the SRS process itself is
unrelated to acoustic waves, these data are evidence of a nonlinear co
upling of SRS to other parametric processes involving daughter acousti
c waves.