title: Numerical study of a new negative index material in mid-infrared spectrum.
abstract: 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.
authors.affiliation: State Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China.
authors.forename: Dengmu
authors.initials: D
authors.lastname: Cheng
authors.forename: Jianliang
authors.initials: J
authors.lastname: Xie
authors.forename: Peiheng
authors.initials: P
authors.lastname: Zhou
authors.forename: Huibin
authors.initials: H
authors.lastname: Zhang
authors.forename: Nan
authors.initials: N
authors.lastname: Zhang
authors.forename: Longjiang
authors.initials: L
authors.lastname: Deng