Boson peak, flickering noise, backscattering processes and radiative transfer in random media

The method of matrix Green's functions in the classical theory of electromagnetic waves is stated. This method allows to obtain a closed equation system in the presence of the random media for the calculation both coherent, and incoherent (fluctuating) components of radiation. The density and heterogeneity of scattering media can be arbitrary. The coherent channel is calculated independently. The fluctuating radiation distribution in the medium is developed initially by an interference pattern generated by the coherent channel. The limitations of the processes speed are absent. The theory embraces such phenomena as the boson peak, flickering noise, memory effect, backscattering processes and also conventional radiative transfer equation and Fresnel's formulae.

Research Highlights►the method of matrix Green's functions in the classical theory of electromagnetic waves. ►closed equation system in the random media for both coherent and incoherent components. ►theory describes boson peak, flickering noise, backscattering, radiative transfer. ►density and heterogeneity of scattering media can be arbitrary. ►limitations of the processes speed are absent.