Fig. 6From: Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating a Transmission spectra of the PBR with double defect for three different location combinations: third–ninth, fifth–ninth, and seventh–ninth. b The electric field profiles (E y ) for these three cases at λ = 7.105 μm (pointed by the arrows in transmission spectra). The red dashed circles denote the central defect-mode regionBack to article page