Problems of modeling the volume processes of Relaxed Optics are discussed. It was shown that these processes may be having nonequilibrium and irreversible nature. Bond between radiated and nonradiated relaxation or processes of Nonlinear and Relaxed Optics is observed. Physical-chemical and electrodynamics' aspects of these phenomena are analyzed. Modified Rayleygh models and Bohrs theory of Cherenkov radiation are used for the observation of represented experimental data. Comparative analysis the methods of modeling shock waves processes and cascade model of excitation in regime of saturation the excitation are used for modeling the laser-induced breakdown of irradiated matter. Corresponding experimental data are analyzed too.