Lecture
This lecture delves into the study of non-linear resonant coupling of three waves, focusing on the interaction between transverse electromagnetic waves and electron plasma waves. The instructor explains the derivation of coupled equations for the amplitudes of these waves, emphasizing the importance of frequency and wave number matching conditions. The lecture covers the concept of wave energy in a continuous dispersive media, exploring the contributions from electromagnetic fields and kinetic energy from the medium. Through quantum mechanical interpretations, the distribution of energy from incident light waves to scattered light and electron plasma waves is analyzed. The instructor also discusses the implications of wave energy distribution in the context of stimulated Raman scattering and other plasma instabilities.