Open AccessNumerical study of a new negative index material in mid-infrared spectrum
Author(s) -
Daizhan Cheng,
Jianliang Xie,
Huibin Zhang,
Nan Zhang,
Longjiang Deng
Publication year - 2012
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.20.025744
Subject(s) - metamaterial , optics , refractive index , infrared , transmission coefficient , polarization (electrochemistry) , materials science , negative index metamaterials , physics , transmission (telecommunications) , telecommunications , computer science , chemistry
We explored numerically a new negative index material in mid-infrared spectrum, based on a thin wire net pairs and a square ring pairs array, which exhibits simultaneously hyper-transmission, polarization independence and small period. The mechanism implementing the negative refractive index was analyzed using retrieved optical constants as well as a valid analytical expression of the effective permeability that was deduced by virtue of a simple equivalent circuit model and applied to account for the magnetic property of this metamaterial.