Statistical characteristics of the point source radiation scattered by a randomly inhomogeneous layer

It is well known that absorption in randomly inhomogeneous media strongly affects statistical characteristics of scattered electromagnetic waves. Recently it has been established that asymmetric attenuation of the scattered waves is caused by absorption. In most works the turbid medium boundary is illuminated by a plane wave or by a collimated light beam, the source being located in the medium. The case when the source and the receiver are located on different sides relative to the randomly inhomogeneous absorptive layer is of great practical importance. Such a situation can take place at: probing the atmosphere and ocean water, exposing translucence thick clouds or living tissues by IR radiation and etc. The relationship between statistical characteristics of the scattered radiation and randomly varying parameters of the medium will allow us to study experimentally the peculiarities of wave propagation in the absorptive media. The influence of the distance both from the point source and the receiver to the boundaries of the plane layer on the statistical characteristics of the angular power spectrum of the multiply scattered radiation is analyzed in this paper. The source and the detector are located in homogeneous media of different permittivity on different sides with respect to the inhomogeneous plane layer.