Design & Analysis of Logic Gates using 2D Photonic Crystals

Abstract

This paper present new plans of all-optical OR, AND, NOR and NAND rationale gates dependent on the obstruction impact. The plans are constructed utilizing 2D square cross section Photonic Crystal (PhC) structure of dielectric bars inserted in air foundation. The cross-section steady and the bar span are intended to accomplish greatest working scope of frequencies utilizing the hole outline. We utilize the Plane Wave Expansion (PWE) technique to acquire the structure of band and the whole guide of the proposed plans. The working wavelengths accomplish a wide band extend that changes between 1272.06 nm and 1987.40 nm with focus wavelength at 1550nm. Finite-Difference Time-Domain (FDTD) technique is utilized to think about the field conduct inside the PhC gates. The gates fulfill their reality tables with sensible power differentiate proportion between logic '1' and logic '0'.