Generation of Emissions By Fast Particles In Stochastic Media

The review presents basic elements of the theory of electromagnetic emission by nonthermal particles propagating in stochastic media. In particular, general theory and a few special regimes of Diffusive Synchrotron Radiation (DSR)arising in the presence of random magnetic/electric fields are analyzed in detail. Possible applications of the DSR theory to astrophysical sources as well as other emission processes typical for the random media are discussed briefly.