Affiliation:
1. University of Technology-Iraq
2. College of Engineering, University of Kerbala
Abstract
The half-adder (HA) and half-subtractor (HS) plasmonic combinational
logic circuits are explained using a finite element method with a
COMSOL software package. The combinational circuits are created using
insulator-metal-insulator technology with nanoscale plasmonic
structures. In order to achieve an excellent transmission value, the
phase angle of optical waves and the position of the control and input
ports are the more crucial elements. In this design, the nanoscale
combinational circuits are realized at a 35% transmission threshold to
distinguish between the logic “0” and logic “1” stand on the
interference between the input and control ports with 540nm×250nm dimensions and an 850 nm
resonant wavelength. The modulation depth, contrast ratio, and
insertion loss have 97.38%, and 11.84 and 3.3 dB for the HA,
and they have 92.38%, and 7.12 and −1.41dB for the HS, respectively.
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
1 articles.
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