Non Bragg band gaps in 1D uniaxial metamaterial photonic crystals

摘要

We explore the electromagnetic response of one-dimensional photonic crystals containing slabs of uniaxial anisotropic indefinite metamaterials (IMMs) with hyperbolic spatial dispersion characteristics. A band structure classification has been previously made according to the sign of the permittivity and permeability parameters for the particular case of optical axis perpendicular to the slab interfaces. To extend this study, here we analyze how the dispersive behavior of each constitutive parameter affects the multilayer band structure. We consider two orientations of the optical axis, perpendicular and parallel to the slab interfaces, and TE and TM modes. Particular attention is paid to the effects of material dispersion on the existence of non-Bragg band gaps.