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In this paper we explore the possibility to accomplish field enhancement in the visible range in a photonic band gap cavity inserted in a Bragg waveguide, assisted by a silver metal groove. The investigation we carried out shows how the resonant mode can be localized in dielectric region under a Bragg grating; a thorough evaluation of some characteristic parameters also allows to determine whether...
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...
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