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Advances in Materials Science and Engineering
Volume 2018 (2018), Article ID 8579376, 7 pages
https://doi.org/10.1155/2018/8579376
Research Article

Scattering from a PEC Slightly Rough Surface in Chiral Media

Department of Electronics, Quaid-i-Azam University, Islamabad 45320, Pakistan

Correspondence should be addressed to Muhammad Arshad Fiaz; moc.liamg@dahsraru

Received 29 May 2017; Revised 30 November 2017; Accepted 6 December 2017; Published 20 March 2018

Academic Editor: Frederic Dumur

Copyright © 2018 Haroon Akhtar Qureshi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The scattering of left circularly polarized wave from a perfectly electric conducting (PEC) rough surface in isotropic chiral media is investigated. Since a slightly rough interface is assumed, the solution is obtained using perturbation method. Zeroth-order term corresponds to solution for a flat interface which helps in making a comparison with the results reported in the literature. First-order term gives the contribution from the surface perturbations, and it is used to define incoherent bistatic scattering coefficients for a Gaussian rough surface. Higher order solution is obtained in a recursive manner. Numerical results are reported for different values of chirality, correlation length, and rms height of the surface. Diffraction efficiency is defined for a sinusoidal grating.