Utilizing Elliptical Ring IMI-Plasmonic Waveguides, Nanomaterials in Nanophotonic Structure for All-Optical 2 × 1 Demultiplexer

Abstract

 In many industries, particularly electronics, photonic devices are indispensable. However,
the diffraction limit and miniaturization are the two problems that have hampered the development of
photonics devices. These problems are resolved by plasmonic devices, which enable nanophononics and
nanodevices. One of the primary all-optical demultiplexer components utilized in an all-optical Athematic
Logic Unit (ALU), which is regarded as the basic building block for all-optical computers, is a plasmonic
demultiplexer This paper provides a new design for an elliptical ring insulator-metal-insulator (IMI)
plasmonic waveguide-based all-optical demultiplexer (Demux). The suggested device has a small footprint
(300 nm × 250 nm) and works at a 1550 nm wavelength. Demux has a 0.5 transmission threshold between
logic zero and logic one states. Transmission (T), extinction ratio (contrast ratio (CR)), modulation depth
(MD), and insertion loss (IL) are the four metrics that best explain the performance of the plasmonic Demux.
The suggested structural dimensions are outstanding and optimal based on the values of MD for Demux
which is (95.87%). The device's maximum transmission efficiency is 56.84%. The suggested plasmonic
Demux structure makes a substantial contribution to all-optical signal processing Nano-circuits and nanophotonics integrated circuits. Using COMSOL Multiphysics, we simulate the proposed plasmonic Demux
using the Finite Element Method (FEM)