Coupled-wave surface-impedance analysis of extraordinary transmission through single and stacked metallic screens

TL;DR

This paper introduces a coupled-wave surface-impedance method for analyzing extraordinary optical transmission through metallic screens, applicable across microwave to optical frequencies, validated by simulations for accuracy and efficiency.

Contribution

The paper presents a novel coupled-wave surface-impedance approach that efficiently models EOT in realistic metallic structures, including stacked screens and dielectric layers, across a broad frequency range.

Findings

The method accurately predicts EOT phenomena in various configurations.

Simulation results confirm the model's validity and computational efficiency.

Applicable to both microwave and optical frequency regimes.

Abstract

In this paper we present an efficient Coupled-wave surface-impedance method for the analysis of extraordinary optical transmission (EOT) through single and stacked realistic metallic screens under normal and oblique incidence, including possible dielectric interlayers. The proposed theory is valid for the complete frequency range where EOT has been reported, including microwaves and optics. Electromagnetic simulations validate the results of the model, which allows for a fast and accurate characterization of the analyzed structures.