Rk. Kirkwood et al., EFFECT OF ION-WAVE DAMPING ON STIMULATED RAMAN-SCATTERING IN HIGH-Z LASER-PRODUCED PLASMAS, Physical review letters, 77(13), 1996, pp. 2706-2709
The dependence of the magnitude of stimulated Raman scattering (SRS) o
n ion-wave damping has been demonstrated in a high-Z plasma. The ion-w
ave damping is varied in a well characterized Xe plasma by varying the
concentration of a C5H12 impurity. The reflectivity of SRS is observe
d to increase with the concentration of the dopant, demonstrating the
effect of ion-wave damping on SRS. The measurements are consistent wit
h models in which the amplitude of the SRS-driven Langmuir waves are l
imited by a secondary decay into ion-acoustic waves.