Selective Filters Design Based Two-Dimensional Photonic Crystals: Modeling Using the 2D-FDTD Method

The photonic crystals are structures whose dielectric index varies in one or more spatial direction. In these latter appear energy band gap for the electromagnetic field, prohibiting propagation of light in certain directions and in certain energies. These characteristics give the photonic crystals having attractive properties for many applications in integrated optic. Precisely, this work is a contribution to the two-dimensional planar photonic crystals in the field of integrated optics. In this paper, we propose novel selective filter topologies by the use of cascaded wave guides. The performance of such structures in terms of transmission and reflection will be performed and analyzed using 2D-FDTD method.