All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

Saif H. Abdulnabi; Mohammed N. Abbas

doi:10.1117/1.JNP.13.016009

28 February 2019 All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

Saif H. Abdulnabi, Mohammed N. Abbas

Author Affiliations +

Journal of Nanophotonics, Vol. 13, Issue 1, 016009 (February 2019). https://doi.org/10.1117/1.JNP.13.016009

Abstract

We propose, analyze, and simulate a configuration to realize all-optical logic gates based on nanoring insulator–metal–insulator (IMI) plasmonic waveguides. The proposed plasmonic logic gates are numerically analyzed by finite element method. The analyzed gates are NOT, OR, AND, NOR, NAND, XOR, and XNOR. The operation principle of these gates is based on the constructive and destructive interferences between the input signal(s) and the control signal. The suggested value of transmission threshold between logic 0 and logic 1 states is 0.25. The suggested value of the transmission threshold achieves all seven plasmonic logic gates in one structure. We use the same structure with the same dimensions at 1550-nm wavelength for all proposed plasmonic logic gates. Although we realize seven gates, in some cases, the transmission of the proposed plasmonic logic gates exceeds 100%, for example, in OR gate (175%), in NAND gate (112.3%), and in XNOR gate (175%). As a result, the transmission threshold value measures the performance of the proposed plasmonic logic gates. Furthermore, the proposed structure is designed with a very small area (400 nm × 400 nm). The proposed all-optical logic gates structure significantly contributes to the photonic integrated circuits construction and all-optical signal processing nanocircuits.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

Citation Download Citation

Saif H. Abdulnabi and Mohammed N. Abbas "All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band," Journal of Nanophotonics 13(1), 016009 (28 February 2019). https://doi.org/10.1117/1.JNP.13.016009

Received: 6 September 2018; Accepted: 14 February 2019; Published: 28 February 2019

ACCESS THE FULL ARTICLE

JOURNAL ARTICLE
20 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY