The task of this subdivision is establishing a connection between intensity of the light dissipated by a fractal surface in that or other direction, and parameters of surface.
Our purpose is construction scattering indicatrise of an electromagnetic wave by a fractal surface 1. The scattered field we shall find behind Kirchhoff method , and considering complexity of a problem, we shall take advantage of more simple scalar variant of the theory according to which the electromagnetic field is described by scalar size.
Thus we lose an opportunity to analyze polarizing effects.
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After calculation of integrals 4 and 5 by means of the formula. Thus, expression 6 gives the decision of a problem about finding a field scattering by a fractal surface, within the limits of Kirchhoff method. After calculation I s and leaving from 6 , we shall receive exact expression. As expression 7 consist the infinite sum to use it for numerical calculations inconveniently. Using thus decomposition function in a line. We shall receive the approached expression for average scattering coefficient. The received results are presented on fig.
With increase in a calibration degree of surfaces or with growth of its large-scale heterogeneity the picture of scattering becomes complicated. Independence of the type of scattering surface there is dependence of the scattering coefficient from the incidence angle of light wave. As far as an increase of the incidence angle from 30 0 to 60 0 amounts of additional peaks diminishes. It is related to influence on the scattering process of the height of heterogeneity of the surface. The noted features of dispersion are investigation of combination of chaoticness and self-similarity relief of scattering surface.
In this chapter in the frame of the Kirchhoff method the average coefficient of light scattering by surface fractal structures was calculated.
Scattering of Electromagnetic Waves by Particles
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rayleigh scattering - Computer Definition
Our readership spans scientists, professors, researchers, librarians, and students, as well as business professionals. Semchuk and M. Downloaded: Introduction Accurate measurement of surface roughness of machined workpieces is of fundamental importance particularly in the precision engineering and manufacturing industry.
Fractal model for two-dimensional rough surfaces At theoretical research of processes of electromagnetic waves scattering selfsimilar heterogeneous objects by rough surfaces is a necessity to use the mathematical models of dispersive objects. Electromagnetic wave scattering on surface fractal structures At falling of electromagnetic wave there is her dispersion on the area of rough surface - the removed wave scattering not only in direction of floppy, and, in general speaking, in different directions.
Conclusion In this chapter in the frame of the Kirchhoff method the average coefficient of light scattering by surface fractal structures was calculated.
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