Plasmonic resonators in metal-insulator-metal plasmonic waveguides

Abstract

Comprehensive studies dealing with plasmonic resonators formed in metal-insulator-metal (MIM) plasmonic waveguides are discussed. A brief review of the fundamental guiding properties of a MIM plasmonic waveguide is provided. Working principles and design processes of various plasmonic resonators in MIM waveguides are then discussed, including the plasmonic resonators based on the waveguide Bragg grating (WBG), those originating from the Fabry-Perot resonance in the lowrefractive- index barriers, resonators with a stub geometry, and those comprised of ring resonators.