title: Multiple plasmon-induced transparencies in coupled-resonator systems.
abstract: Multiple plasmon-induced transparencies are numerically predicted in an ultracompact plasmonic structure, comprising series of stub resonators side-coupled with a metal-isolator-metal waveguide. Because of the phase-coupled effect, electromagnetically induced transparency (EIT)-like spectral response occurs between two adjacent stub resonators with detuned resonant wavelengths. In this approach, multiple EIT-like spectral responses, with bandwidths of the order of several nanometers, are obtained in the plasmonic structure with a small footprint of about 0.6  μm2. An analytic model and the relative phase analysis based on the scattering matrix theory are used to explain this phenomenon.
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China. chernmore@pku.edu.cn
authors.forename: Jianjun
authors.initials: J
authors.lastname: Chen
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.forename: Ru
authors.initials: R
authors.lastname: Zhang
authors.forename: Jinghua
authors.initials: J
authors.lastname: Xiao