Multiple plasmon-induced transparency effects derived by periodically arranged rectangular resonators in a plasmonic system

Abstract

Plasmon-Induced Transparency (PIT) is extended from the classical electromagnetically induced transparency (EIT), which has been a hotspot in recent years because of its potential applications in optical integrated devices. In this letter, multiple Plasmon-Induced Transparency (PIT) effects are achieved by periodically arranged rectangular resonators (RRs). The proposed structure is composed of metal-dielectric-mental (MDM) waveguide with a connected stub cavity and coupled RRs. Two RRs with the same parameters are placed vertically and seen as a periodic unit. New PITs arise one by one as new RRs are etched continually. The interesting phenomenon can be applied in optical devices.