Abstract
Abstract All optical majority gate is an optical logic structure with three input and one output ports. In this paper we designed an optical majority gate using a nonlinear resonant cavity based on photonic crystals. Plane wave expansion and finite difference time domain methods were used for calculating the band structure diagram and optical behavior of the optical majority gate, respectively. The proposed structure is ON, when two or three input ports are ON. The maximum time delay of our majority gate is about 5 ps.
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