Optical computing and optical neural network have gained increasing attention in recent
years because of their potential advantages of parallel processing at the speed of light and …

The idea of photonic crystal came to be when E. Yablonovitch and S. John recommended a
structure in 1987 having periodic alteration of refractive index in one or multiple directions …

Photonic crystals are suitable structures for designing various types of optical logic circuits.
In this paper, an all-optical comparator is designed and simulated using two-dimensional …

A novel design for realizing all optical analog to digital converter will be proposed in this
paper. The proposed structure consists of two main parts; a nonlinear 3-channel …

In this research, an all-optical NOR gate is designed and simulated based on two-
dimensional photonic crystals. A square lattice has been used to design this structure. This …

All optical comparators play crucial roles in all optical data processing systems. In this paper
we proposed a novel structure for realizing an all optical comparator, which can compares …

In this paper, all optical OR, AND, NOR and NAND gates based on linear photonic crystals
(LPhCs) have been numerically designed and simulated by the plane wave expansion …

All-optical logic gates (AO-LGs) are the key elements that play a pivotal role in the
development of future all-optical networks and all-optical computing. A complete overview of …

Photonic crystals can be considered as one of the most important basis for designing optical
devices. In this research, using two-dimensional photonic crystals with triangular lattices …

The implementation of an optimized three-input OR gate has been accomplished through
the use of T-shaped two-dimensional photonic crystals, which are made of silicon material …