Unidirectional reflectionless propagation and slow-light enhanced sensing with plasmonic waveguide-cavity systems

Document Type

Conference Proceeding

Publication Date

1-1-2016

Abstract

We design a non-parity-time-symmetric plasmonic waveguide-cavity system, consisting of two metal-dielectric-metal stub resonators side coupled to a metal-dielectric-metal waveguide, to form an exceptional point, and realize unidirectional reflectionless propagation at the optical communication wavelength. We also show that slow-light-enhanced ultra-compact plasmonic Mach-Zehnder interferometer sensors, in which the sensing arm consists of a waveguide system based on a plasmonic analogue of electromagnetically induced transparency, lead to an order of magnitude enhancement in the refractive index sensitivity compared to a conventional metal-dielectric-metal plasmonic waveguide sensor. Finally, we show that plasmonic coaxial waveguides offer a platform for practical implementation of plasmonic waveguide-cavity systems.

Publication Source (Journal or Book title)

Proceedings of SPIE - The International Society for Optical Engineering

This document is currently not available here.

Share

COinS