Plasmons on metal layers embedded in dielectric PBG cavity

This paper describes the analysis of the effects induced on the resonant mode originating inside a Bragg waveguide by the presence of an Ag metal layer. Since it exhibits a negative value of the dielectric permittivity and a relatively low absorption in the visible and NIR ranges, the Ag metal layer is able to support surface modes. By exploiting surface plasmon features we investigate on an alternative fashion of tuning and enhancing resonant modes for LED applications. The analysis has been performed using FDTD method, where the experimental data of the Ag permittivity are introduced using Drude model.