Open AccessPolarization-insensitive resonances with high quality-factors in meta-molecule metamaterials
Author(s) -
Lin Wu,
Zhenyu Yang,
Ming Zhao,
Yu Zheng,
Jian Duan,
Xiuhua Yuan
Publication year - 2014
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.22.014588
Subject(s) - metamaterial , polarization (electrochemistry) , resonance (particle physics) , split ring resonator , planar , optics , q factor , physics , materials science , atomic physics , resonator , computer science , chemistry , computer graphics (images)
Achieving narrow resonance is an area of interest within the field of metamaterials. However, only a few studies have investigated the polarization-insensitive resonances. A general principle for improving quality Q-factor of a sharp resonance is still unclear. In this work, we proposed a kind of planar meta-molecule metamaterials, which can exhibit polarization-insensitive resonance with high Q-factor. The proposed structures have a unit cell consisting of four arrayed ring resonant elements with two different sizes. Moreover, the investigation on surface current and two referential simulated structures confirm a principle for improving Q-factor.