New results on extraordinary optical transmission and Fishnet Metamaterials

A generalized transverse waveguide analysis for Extraordinary Transmission (ET) and Fishnet Metamaterials (FMs) in realistic metallic screens has recently been published by the authors [1]. The model is valid for lossy metallic screens thanks to the Surface Impedance (SI) approximation (e.g. [2]). A standard scattering matrixes formalism makes the model applicable to stacked screens with possible dielectric boards. A number of reported phenomena [3, 4] related to screens with a periodic array of slits or holes are reproduced efficiently with the presented analysis.