Investigation of the Absorption of Two-Dimensional Periodic Structures on New Plasmon Materials

the two-dimensional periodic lattices of plasmon strips on substrates, which contain dielectric and plasmon layers were investigated. The Galerkin method was used to solve the vector integro-differential diffraction equation on three-dimensional dielectric bodies. Based on the solution obtained, the electrodynamic model was developed and numerical calculations of the problem were performed. The investigation’s shown that at resonant frequencies of a surface plasmon-polariton in a wide frequency range, these structures are absorbers of almost 100% of the energy incident on them. In addition, using of non-metallic plasmon materials allows to obtain an absorber of the infrared range in a wide range of wavelengths.