Fig. 7: Spectrograms obtained in full-wave simulations.
From: Controlled beat-wave Brillouin scattering in the ionosphere
One simulated cycle of a X mode and b O mode injected vertically. Each panel shows pump only with input amplitude 0.6 V/m and frequency \({f}_{0}=6.3\) MHz, probe only with input amplitude 0.2 V/m, and frequency offsets relative to the pump given in Table 2, and both probe and pump. The latter shows a rich spectrum of nonlinear sidebands that escape the plasma as SEE.
