Camacho Aguilar, MiguelRodríguez Boix, RafaelMedina Mena, FranciscoHibbins, Alastair P.Sambles, J. Roy2018-05-292018-05-292017Camacho Aguilar, M., Rodríguez Boix, R., Medina Mena, F., Hibbins, A.P. y Sambles, J.R. (2017). On the extraordinary optical transmission in parallel plate waveguides for non-TEM modes. Optics Express, 25 (20), 24670-24677.1094-4087https://hdl.handle.net/11441/75371Extraordinary transmission has been recently measured in a parallel plate waveguide (PPWG) through a metal strip with a patterned 1-D periodic array of circular holes, the metal strip being embedded inside the PPWG. Wood’s anomaly and the extraordinary transmission peak (EOT) were detected for transverse electric (TE) mode excitation at frequencies higher than those found for TEM mode excitation. In this paper we provide an explanation for this frequency shift by decomposing the problem of a TE mode impinging on the 1-D array of holes into two problems of plane waves impinging obliquely on 2-D periodic arrays of holes. By then solving the integral equation for the electric field on the surface of the holes, the origin of the frequency shift is proved both mathematically and physically in terms of the symmetries present in the system.application/pdfengAtribución-NoComercial-SinDerivadas 3.0 Estados Unidos de Américahttp://creativecommons.org/licenses/by-nc-nd/4.0/Dielectric waveguidesElectric excitationElectric fieldsFinite difference methodIntegral equationsLight transmissionPlate metalWaveguidesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1364/OE.25.024670