Band Gap Computation of 1-Dimentional Silicon Photonic Crystal for High Contrast Grating Application

Abstract

One Dimensional Photonic Crystal (PHc) is manageable and uncomplicated type of PHc, It refers to the fact that the dielectric is only periodic in one direction. The evaluation of photonic structure by numerical and a simulation method is hugely significant. At optical frequencies the optical thickness inside one dimensional PHc changes periodically. They have the attributes to robust effect the propagation of light waves at these optical frequencies. In the instant work, band-gap has calculated for one dimension PHc. The Finite Difference Time Domain (FDTD) and plane wave expansion (PWE) Methods are extensively used for band gap calculation of PHc’s. FDTD Method has more flexibility and simplicity and can be explored easily for computation of the field distribution inside the photonic structure than PWE method so we have used FDTD Method for one dimensional PHc’s calculation. General Terms FDTD Algorithm using High Contrast Grating Application.