High Transmission All-Optical Combinational Logic Circuits Based on a Nanoring Multi-Structure at 1.31 µm.

Micromachines (Basel)

Electrical Engineering Department, Faculty of Engineering, Razi University, Tagh-E-Bostan, Kermanshah 6714414971, Iran.

Published: September 2023

AI Article Synopsis

  • The study creates new combinational logic gates using a unique configuration of insulator-metal-insulator (IMI) nanoring plasmonic waveguides, including half and full adders and subtractors, along with a one-bit comparator.
  • These logic gates operate through interference between input and control signals, with a key performance threshold set at 0.35 at a specific wavelength of 1.310 μm.
  • Results show impressive performance metrics, such as a maximum transmission of 232% for the full adder and over 90% modulation depth in all gates, demonstrating their potential in advanced photonic and optical communication systems.

Article Abstract

The main purpose of this study is to design combinational logic gates based on a novel configuration of insulator-metal-insulator (IMI) nanoring plasmonic waveguides. Plasmonic logic gates are half adder, full adder, half subtractor, full subtractor, and one-bit comparator and are realized in one structure. The performance of the logic circuits is based on constructive and destructive interferences between the input and control signals. The transmission threshold value is assumed to be 0.35 at the resonance wavelength of 1.310 μm. The transmission spectrum, contrast loss (CL), insertion loss (IL), modulation depth (MD), and contrast ratio (CR) are calculated in order to evaluate the structure's performance. The maximum transmission of the proposed structure is 232% for full a adder logic gate, and MD exceeds 90% in all plasmonic combinational logic circuits. The suggested design plays a key role in the photonic circuits and nanocircuits for all-optical systems and optical communication systems. The combinational logic gates are analyzed and simulated using the finite element method (FEM).

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10609503PMC
http://dx.doi.org/10.3390/mi14101892DOI Listing

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