Open AccessTransmission line metamaterials based on strongly coupled split ring/complementary split ring resonators
Author(s) -
Yu-Jhan Lin,
Yang-Hua Chang,
Wen-Chen Chien,
WuHsien Kuo
Publication year - 2017
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.25.030395
Subject(s) - resonator , metamaterial , optics , split ring resonator , coupling coefficient of resonators , q factor , coupling (piping) , materials science , permittivity , planar , dimensionless quantity , radius , ring (chemistry) , optoelectronics , physics , dielectric , chemistry , computer graphics (images) , computer security , organic chemistry , computer science , mechanics , metallurgy
We experimentally studied the coupling between a double split ring resonator and a complementary split ring resonator. The greatest coupling occurs when the two resonators are separated by the average ring radius, and the dimensionless coupling is as large as 0.1, allowing a novel planar metamaterial based on this hybrid structure. The coupling strength can be varied up to a factor of 2 by changing the relative orientation of the split ring resonators. A 2×2 waveguide structure with -10 dB coupling factor can be achieved, and showing multi-mode plasmon-induced transparency. It can be considered one-dimensional metamaterials exhibiting negative permeability and permittivity simultaneously.