Slope distribution of a rough surface measured by transmission scattering and polarization.
Transmission scattering from medium to air was used to measure the slope distribution of the rough plane surface of a transparent glass hemisphere. A facet model successfully explained the measured results of refraction, scattering, and polarization: Transmission scattering existed for incident angles greater than the critical angle, all measured curves for the normalized scattered intensity versus the facet slope angle for different detection directions overlapped, and the measured polarization of scattering was approximately constant for >99% of the facets. The slope distribution obtained by transmission scattering agrees with those of the surface profiles in the valid range of the profiler and can represent the slope distribution of the rough surface.
Nee
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Physics Branch, Research Department, Weapons Division, Naval Air Warfare Center, China Lake, California 93555-6001, USA. neesf@navair.navy.mil
Dewees
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Nee
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Johnson
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Moran
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