In this paper, the properties of broadband absorbers for visible and near-infrared frequencies, based on multilayered metal-insulator (MI) structures have been analyzed. In our analysis, we have considered Titanium as metal and Silicon Nitride (Si3N4) as dielectric. In addition, the effect of the incident angle on the absorption properties of transverse magnetic and transverse electric polarized waves has been also investigated. Further, the influence of structural geometrical parameters has been studied in order to maximize the absorption and bandwidth. We believe that our results can be used as practical guidelines for realization of efficient broadband visible and infrared absorbers enabling applications as filters or absorbers for visible, infrared radiation and optical communications frequencies. The Finite Element Method has been used to carry the simulations.
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