Transmitted scattered light from a thin film with shallow random rough interfaces

Raúl García Llamas, Luis E. Regalado

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13 Scopus citations

Abstract

The transmitted scattered energy of plane electromagnetic waves from a thin metallic film with shallow rough interfaces bounded by two semi-infinite media is calculated. Both interfaces are modeled as independent stationary random processes with a Gaussian roughness spectrum. Scattering of light is calculated for both TM (p) or TE (s) polarizations for normal and oblique angles of incidence. An integral equation is obtained for the transmitted field based on the Rayleigh method and their solution involves Fourier coefficients, depending on the roughness profiles. We present some results for the case of a single thin metallic film in the attenuated total reflection configuration for s and p polarization around the angle of the excitation of surface-plasma waves θsp. The transmitted scattered intensity shows a maximum at the resonant angle θsp in the case of p polarization.

Original languageEnglish
Pages (from-to)5595-5599
Number of pages5
JournalApplied Optics
Volume35
Issue number28
DOIs
StatePublished - 1 Oct 1996

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