Open AccessHighly-dispersive transparency at optical frequencies in planar metamaterials based on two-bright-mode coupling
Author(s) -
Xing-Ri Jin,
Jinw oo Park,
Haiyu Zheng,
Seongjae Lee,
YoungPak Lee,
Joo Yull Rhee,
Ki Won Kim,
Hyeonsik Cheong,
Won Ho Jang
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.021652
Subject(s) - electromagnetically induced transparency , metamaterial , optics , plasmon , planar , slow light , strips , physics , coupling (piping) , excited state , mode coupling , extraordinary optical transmission , refractive index , surface plasmon , optoelectronics , materials science , surface plasmon polariton , photonic crystal , atomic physics , computer graphics (images) , computer science , metallurgy , composite material
Using a planar metamaterial, which consists of two silver strips, we theoretically demonstrate the plasmonic electromagnetically-induced transparency (EIT)-like spectral response at optical frequencies. The two silver strips serve as the bright modes, and are excited strongly by the incident wave. Based on the weak hybridization between the two bright modes, a highly-dispersive plasmonic EIT-like spectral response appears in our scheme. Moreover, the group index is higher than that of another scheme which utilizes the strong coupling between the bright and dark modes.