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Optical Engineering

Backscattering from particulate surfaces: experiment and theoretical modeling
Author(s): Jose M. Saiz; Pedro J. Valle; Francisco Gonzalez; Fernando Gracia Moreno; David L. Jordan
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Paper Abstract

The copolarized backscattered intensity from surfaces composed of metallic particles on conducting flat substrates is analyzed experimentally as a function of the incidence angle. The analysis is done for particle sizes smaller than, comparable to, and larger than the incident wavelength (0.633 μm) and for low particle surface densities. Numerical calculations based on the extinction theorem for a onedimensional surface model consisting of an infinitely long cylinder located on a flat substrate for the same optical constants used in the experiment are also presented for qualitative comparison with the experimental results. This serves to analyze the effect of particle aggregation. For the surfaces with particles smaller than the incident wavelength, conclusions are drawn concerning the possible relevance of this study in radar wave scattering from the sea surface.

Paper Details

Date Published: 1 April 1994
PDF: 10 pages
Opt. Eng. 33(4) doi: 10.1117/12.163137
Published in: Optical Engineering Volume 33, Issue 4
Show Author Affiliations
Jose M. Saiz, Univ. de Cantabria (Spain)
Pedro J. Valle, Universidad de Cantabria (Spain)
Francisco Gonzalez, Univ. de Cantabria (Spain)
Fernando Gracia Moreno, Univ. de Cantabria (Spain)
David L. Jordan, Royal Signals and Radar Establishment (United Kingdom)


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