Abstract
We present experimental measurements of the angular distribution of light scattered from large-scale composite randomly rough surfaces (oceanlike surfaces) with different statistical parameters illuminated at small and large angles of incidence. The surfaces are composed of a small-scale roughness superimposed on a slowly (large-scale) varying surface. The large-scale surfaces are diamond-machined periodic surfaces made on aluminum substrates and have either a sinusoidal or a Stokes wave profile. The small-scale roughness is added with microlithographic techniques, and the surfaces are then gold coated. For a linearly polarized incident beam, it is found that the diffusely scattered light is strongly depolarized and that its pattern is rather different for each large-scale surface profile. Enhanced backscattering is also observed.
© 2002 Optical Society of America
Full Article | PDF ArticleMore Like This
Víctor Ruiz-Cortés and Christopher Dainty
J. Opt. Soc. Am. A 29(6) 1154-1160 (2012)
Ezekiel Bahar and Mary Ann Fitzwater
J. Opt. Soc. Am. A 6(1) 33-43 (1989)
Leung Tsang, Chi H. Chan, Kyung Pak, Haresh Sangani, Akira Ishimaru, and Phillip Phu
J. Opt. Soc. Am. A 11(2) 691-696 (1994)