Nanomaterials in Nanophotonics Structure for Performing All-Optical 2 × 1 Multiplexer Based on Elliptical IMI-Plasmonic Waveguides

Table 2

A comparison between IMI and MIM waveguides.

	IMI waveguides	MIM waveguides
Layer configuration	Dielectric-metal-dielectric	Metal-dielectric-metal
Field confinement	Less	More
Propagation length	More	Less
Propagation loss	Low	Moderate to high
Dispersion	Can be engineered	Less control
Integration	On-chip integration	Limited integration options
Fabrication	Easy	Not easy