Enhanced All-Optical Y-Shaped Plasmonic OR, NOR And NAND Gate Models, Analyses, And Simulation For High Speed Computations

Abstract

In this digital era, all-optical logic gates (OLGs) proved its effectiveness in execution of high-speed computations. A unique construction of an all-optical OR, NOR, NAND gates based on the notion of power combiner employing metal–insulator–metal (MIM) waveguide in the Y-shape in a minimal imprint of 6.2 µm × 3 µm is presented and the structure is evaluated by finite-difference time-domain (FDTD) technique. The insertion loss (IL) and extinction-ratio (ER) for proposed model are 6 dB and 27.76 dB for NAND gate, 2 dB and 20.35 dB for NOR gate and 6 dB and 24.10 dB respectively. The simplified model is used in the construction of complex circuits to achieve greater efficiency, which contributes to the emergence of a new technique for designing plasmonic integrated circuits.

Modeling and simulation of photonic crystal switching devices for high computational applications

“…Interferometer, Mach-Zehnder interferometer (MZI) [3,4], semiconductor optical amplifiers (SOA) [5], and nonlinear [6] phenomena such as electro-optical phenomenon, thermal optical effect and two-photon absorbance were used to develop PhC-based all-optical logic gates (LoG) [7,8]. All-optical Buffer, AND [9,10], and OR [11] (BAO) LoG have been employed in optical combinational and sequential systems including optical detectors, resonators, and LoG [12][13][14][15][16][17][18]. Random noise, intricate structure, and gain saturation effects are some of the concerns of the ways to manufacture all-optical LoG.…”