Title :
Broadband Terahertz Left-Hand Material With Negative Permeability for Magnetic Response
Author :
Wang, Yannan ; Wu, Qingyao ; Wu, Yu Mao ; Zhang, Kai ; Li, L.W. ; Yin, J.H.
Author_Institution :
Dept. of Electr. Sci. & Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, the electromagnetic response of a planar array of electric ring resonators combining with a cross structure on a substrate is investigated. The retrieved effective dielectric parameters from scattering data demonstrate a negative magnetic permeability as well as a negative electric permittivity in wide frequency range of 0.65-1.0 THz. It is proven that, artificial metamaterials using special electric and magnetic response structure, the material behaves as an effective medium with real negative parameters in wide frequency range.
Keywords :
arrays; magnetic permeability; metamaterials; permittivity; broadband terahertz left-hand material; dielectric parameters; electric response; electric ring resonators; electromagnetic response; frequency 0.65 THz to 1.0 THz; metamaterials; negative electric permittivity; negative magnetic permeability; planar array; Magnetic materials; Magnetic resonance imaging; Metamaterials; Permeability; Permittivity; Resonant frequency; Magnetic response; metamaterials; negative parameters; terahertz (THz);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2158079
