Abstract

Full-wave solutions for the vertically and horizontally polarized diffuse single- and double-scatter cross sections of random rough surfaces are given in terms of multidimensional integral expressions. The one-dimensional random rough surface is characterized by joint probability-density functions for the surface heights and slopes, and we account for the correlations between the surface heights and slopes. The full-wave solutions are compared with experimental results. The sharp enhanced backscatter is due to the contributions associated with the quasi-antiparallel paths in the expression for the double-scatter cross section. We conduct a comprehensive parametric study to determine the dependence of the level and the angular width of the sharp enhanced backscatter on the rough-surface characteristics. The results for the diffuse double-scatter cross sections exhibit a distinct dependence on polarization. Full-wave, high-frequency approximations that are practically independent of polarization provide useful physical insights into the problem.

© 1994 Optical Society of America

Enhanced backscatter from one-dimensional random rough surfaces: stationary-phase approximations to full-wave solutions

E. Bahar and M. El-Shenawee
J. Opt. Soc. Am. A 12(1) 151-161 (1995)

Double-scatter cross sections for two-dimensional random rough surfaces that exhibit backscatter enhancement

Ezekiel Bahar and Magda El-Shenawee
J. Opt. Soc. Am. A 18(1) 108-116 (2001)

Depolarization and backscatter enhancement in light scattering from random rough surfaces: comparison of full-wave theory with experiment

Ezekiel Bahar and Mary Ann Fitzwater
J. Opt. Soc. Am. A 6(1) 33-43 (1989)

Like- and cross-polarized scattering cross sections for random rough surfaces: theory and experiment

Ezekiel Bahar and Mary Ann Fitzwater
J. Opt. Soc. Am. A 2(12) 2295-2303 (1985)

Enhancement of backscattered diffuse specific intensities from random distributions of finitely conducting particles with rough surfaces

Ezekiel Bahar and Mary Ann Fitzwater
J. Opt. Soc. Am. A 5(1) 89-98 (1988)