Figure 3
From: Stimulated Brillouin scattering of backward stimulated Raman scattering

The dispersion relation of electromagnetic waves and electrostatic waves in the condition of case 1. The dispersion relation of (a) transverse electric field \({E}_{y}\) and (b), (c) longitudinal electric field \({E}_{x}\). The parameters are case 1: \({n}_{e}=0.2{n}_{c},{I}_{0}=1\times 1{0}^{16}W/c{m}^{2},{L}_{x}=500c/{\omega }_{0}\).