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 $540\;{\rm nm}\times 250\;{\rm nm}$ 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 $-1.41\;{\rm dB}$ for the HS, respectively.

© 2023 Optica Publishing Group

Nanoscale plasmonic logic gates design by using an elliptical resonator

Mohammed J. Alali, Mithaq Nama Raheema, and Ali A. Alwahib
Appl. Opt. 62(15) 4080-4089 (2023)

Realization of an optical nanostructure 4×1 multiplexer based on metal-insulator-metal plasmonic waveguides

Saif H. Abdulwahid, Ahmed Ghanim Wadday, Faris Mohammed Ali, Bashar J. Hamza, and Ali Najah Al-Shamani
Appl. Opt. 62(23) 6163-6168 (2023)

Design of three-bit binary to gray converter based on metal–insulator–metal plasmonic waveguides

Saif H. Abdulwahid, Mohammed R. Saeed, and Ahmed Adnan Hadi
Appl. Opt. 62(24) 6456-6463 (2023)

Multiple-input hybrid plasmonic OR logic gate with a nanostructure

Saif H. Abdulwahid, Ahmed Ghanim Wadday, and Sinan M. Abdulsatar
Appl. Opt. 62(3) 566-572 (2023)

All-optical design for multiplexer and comparator utilizing hybrid plasmonic waveguides

Saif H. Abdulwahid, Ahmed Ghanim Wadday, and Sinan M. Abdul Sattar
Appl. Opt. 61(29) 8864-8872 (2022)