INTERPLAY BETWEEN ION-ACOUSTIC-WAVES AND ELECTRON-PLASMA WAVES ASSOCIATED WITH STIMULATED BRILLOUIN AND RAMAN-SCATTERING

Direct evidence is presented of the temporal and spatial interplay bet ween ion acoustic waves (IAWs) associated with stimulated Brillouin sc attering (SBS) and electron plasma waves (EPWs) associated with stimul ated Raman scattering (SRS) in conditions of interest to inertial conf inement fusion (ICF). The two types of waves grow over a limited regio n in the front part of the plasma, but at different times. Inhibition of the EPWs by the IAWs has been observed in the early part of the las er pulse, and this inhibition can be strengthened by increasing the le vel of the IAWs. (C) 1997 American Institute of Physics.