Abstract
We present the evolution of the refractive index of glass containing ZnS particles with various volume fractions. The optical properties of the new material, thus obtained, can be described by Maxwell–Garnett theory in terms of its effective dielectric permittivity. We investigate different aspects of photonic band gaps (PBGs) in one-dimensional (1D) and two-dimensional (2D) photonic crystals using the finite difference time-domain (FDTD) method. Changes in different structure parameters, such as the filling fraction and the shape, can affect photonic band gap properties such as location, number and width. We have also calculated the cavity mode of the microcavity in the hexagonal structure. We found that the intensity of the resonant defect mode is localized around 0.6 µm.
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