Kaipa, Chandra S. R.Yakovlev, Alexander B.Hanson, George W.Padooru, Yashwanth R.Medina Mena, FranciscoMesa Ledesma, Francisco Luis2017-04-282017-04-282012Kaipa, C.S.R., Yakovlev, A.B., Hanson, G.W., Padooru, Y.R., Medina Mena, F. y Mesa Ledesma, F.L. (2012). Enhanced transmission with a graphene-dielectric microstructure at low-terahertz frequencies. Physical Review B - Condensed Matter and Materials Physics, 85 (24), 245407-.1098-0121http://hdl.handle.net/11441/58965Here, we report on the transmissivity of electromagnetic waves through a stack of monolayer graphene sheets separated by dielectric slabs at low-terahertz frequencies. It is observed that the multilayer structure possesses band-gap properties and supports a series of bandpass and band-stop regions, similar to the cases of stacked metallic meshes separated by dielectric slabs at microwave/THz frequencies and a metal-dielectric stack at optical frequencies. The transmission resonances in the bandpass region are identified as coupled Fabry-Pérot resonances associated with the individual cavities of dielectric slabs loaded with graphene sheets. It is also noticed that these resonances lie within a certain characteristic frequency band, independent of the number of layers in the graphene-dielectric stack. The study is carried out using a simple analytical transfer-matrix approach or, equivalently, a circuit-theory model, resulting in the exact solution for the multiple dielectric/graphene sheet surface-conductivity model. Also, an independent verification of the observed phenomena is obtained with commercial numerical simulations.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1103/PhysRevB.85.245407