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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 29, Iss. 6 — Jun. 1, 2012
  • pp: 1154–1160

Backscattering measurements from double-scale randomly rough surfaces

Víctor Ruiz-Cortés and Christopher Dainty  »View Author Affiliations


JOSA A, Vol. 29, Issue 6, pp. 1154-1160 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001154


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Abstract

We present experimental measurements of light backscattered from double-scale 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 lithographic techniques, and the surfaces are then gold coated. For a linearly polarized incident beam, it is found that the backscattered light is strongly depolarized mainly at small angles of incidence and strong shadowing effects are present for large angles of incidence (θinc>60°).

© 2012 Optical Society of America

OCIS Codes
(290.0290) Scattering : Scattering
(290.5880) Scattering : Scattering, rough surfaces

ToC Category:
Scattering

History
Original Manuscript: March 12, 2012
Revised Manuscript: April 4, 2012
Manuscript Accepted: April 4, 2012
Published: June 1, 2012

Citation
Víctor Ruiz-Cortés and Christopher Dainty, "Backscattering measurements from double-scale randomly rough surfaces," J. Opt. Soc. Am. A 29, 1154-1160 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-6-1154


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