Scattering of electromagnetic waves from one-dimensionally rough surfaces containing surface resonant structures

Arthur R. McGurn; Rosa A. Fitzgerald; Granville Sewell

doi:10.1117/12.401655

26 September 2000 Scattering of electromagnetic waves from one-dimensionally rough surfaces containing surface resonant structures

Arthur R. McGurn, Rosa A. Fitzgerald, Granville Sewell

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Proceedings Volume 4100, Scattering and Surface Roughness III; (2000) https://doi.org/10.1117/12.401655
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The elastic scattering of electromagnetic waves from a rough surface containing resonant structures is studied as a function of the frequency of the incident light. A diagrammatic perturbation theory treatment is used. The surface consists of a planar vacuum-metal or vacuum-dielectric interface upon which an array of identical cylindrical dielectric ridges are randomly placed. The axes of the ridges are parallel to one another so that the translational symmetry of the surface is maintained along one axis in the surface, and the scattering of p-polarized radiation within a scattering plane perpendicular to the axes of the ridges is treated. The ridges are composed of a medium which undergoes a dielectric resonance as a function of frequency. The frequencies of the surface shape resonance modes bound to the dielectric ridges are computed for a surface supporting a single dielectric ridge. For the surface supporting a random array of dielectric ridges the specular scattering and diffuse scattering are computed for frequencies in the neighborhood of the dielectric resonance of the dielectric material forming the Gaussian ridges.

Citation Download Citation

Arthur R. McGurn, Rosa A. Fitzgerald, and Granville Sewell "Scattering of electromagnetic waves from one-dimensionally rough surfaces containing surface resonant structures", Proc. SPIE 4100, Scattering and Surface Roughness III, (26 September 2000); https://doi.org/10.1117/12.401655

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KEYWORDS

Dielectrics

Scattering

Interfaces

Electromagnetic scattering

Light scattering

Electromagnetic radiation

Reflectivity

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