Depolarization of EM waves by slightly rough surfaces

Depolarization is obtained for the scattering of electromagnetic waves from a slightly rough surface using Rice's theory. In the plane of incidence, depolarization is a second-order effect. The results are applied to backscattering from a slightly rough sea using the Neumann spectrum for a full...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 1967-07, Vol.15 (4), p.552-557
Main Author: Valenzuela, G.
Format: Article
Language:English
Subjects:
Backscatter
Electromagnetic scattering
Optical scattering
Optical surface waves
Rayleigh scattering
Rough surfaces
Sea surface
Surface roughness
Surface treatment
Surface waves
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Summary:Depolarization is obtained for the scattering of electromagnetic waves from a slightly rough surface using Rice's theory. In the plane of incidence, depolarization is a second-order effect. The results are applied to backscattering from a slightly rough sea using the Neumann spectrum for a fully developed sea. The expression for the depolarized scattered power is of the form obtained in multiple scattering investigations. Therefore, it can be inferred that depolarization from slightly rough surfaces is due to multiple scattering. For the sea, depolarization increases with wind speed and with the magnitude of the complex dielectric constant of the surface.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.1967.1138962