C. Labaune et al., LOCATION OF ION-ACOUSTIC-WAVES FROM BACK AND SIDE STIMULATED BRILLOUIN-SCATTERING, Physical review letters, 76(20), 1996, pp. 3727-3730
Direct observation of the location of ion-acoustic waves (IAWs) explai
ns for the first time the stimulated Brillouin scattering (SBS) spectr
a in backward and side directions. The regions of SBS activity are lim
ited and smaller than the scale length of the plasma. front part of th
e plasma, resulting in blue Doppler shift of the scattered electromagn
etic wave, and the distance from the summit changes with the SBS angle
.