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We propose an all-optical AND gate based on a two-dimensional photonic crystal. The device is composed of a ring resonator waveguide with two input-port waveguides and one output-port waveguide in triangular-lattice photonic crystals. Transmission behaviors of the proposed device are investigated by the finite difference time domain method. The logic AND gate can operate at various wavelengths such...
We proposed a binary numbers operating NOT/NOR gates with cylindrical silicon structure in all-optical logic system. Operating principle, as revealed by both theoretical calculation and two dimensional finite-difference time-domain simulation. Proposed logic system can show their capabilities. This device is potentially applicable for photonic integrated circuits.
For stimulates great developments in high-speed and high-capacity Cloud Computing Technologies (CCT) systems in the future. The all-optical logic gate based on planar photonic crystal (PPC) waveguide is a promising technology. We design an all-optical AND gate in PPC, as an ultracompact component for planar lightwave circuit integration with suitable choice of parameters, perform this task. The PPC...
In the study, we design a light-concentrating panel that can collect the sunlight to illuminate the indoor spaces. In addition, we improve the light-concentrating efficiency of the light-concentrating panels by coating the anti-reflection layer over the panels. The simulation results show that the light-concentrating efficiency of the light-concentrating panels is about 31.35%, and it can be increased...
We propose a AND logic gate based on photonic crystal with cylindrical silicon structure. It takes advantages of the device sizes are drastically reduced to a scale of a few tens of micrometers and the easy-to-implement logic function. Furthermore, the multi-input AND gate can apply to all-optical Arithmetic Logic Unit (ALU) devices of photon computer in the future.
All-optical logic gate is a basic and crucial element for optical signal processing. In this paper, we propose a 4×2 encoder based on two dimensional triangular lattice photonic crystals composed of cylindrical silicon rods. The main structure of the device is a combination of both line defect Y branch and coupler photonic crystal waveguides. The computational simulation is carried out by using a...
We propose a 4×2 encoder based on two dimensional triangular lattice photonic crystals composed of cylindrical silicon rods. The main structure of the device is a combination of both line defect Y branch and coupler waveguides. The simulation results confirm the proposed optical logic device can show their capabilities‥
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