Tunable multimode plasmon-induced transparency with graphene side-coupled resonators. (6th January 2016)

• Record Type: Journal Article
• Authors: Wang, Jicheng; Liang, Xiuye; Xia, Xiushan; Liu, Shutian
• Is Part Of: Japanese journal of applied physics. Volume 55:Number 2(2016:Feb.)
• Publication Date: 2016-01-06
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.55.022201
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: We investigate a plasmonic graphene waveguide system based on monolayer graphene and two side-coupled graphene rings. The system exhibits multimode plasmon-induced transparency (PIT) effects in the mid-IR region. The dark-bright coupling mechanisms and coupled-resonator-induced transparency (CRIT) theory are both utilized to explain the electromagnetic responses, and the explanation is verified by simulation results of the finite-element method (FEM). By varying the Fermi level of graphene or the coupling gap, we have a means to dynamically manipulate the PIT system.