Title :
Terahertz response of metamaterials constructed of TiO2 spheres and a metal-mesh
Author :
Yakiyama, Y. ; Takano, K. ; Kitahara, H. ; Miyamaru, F. ; Bakunov, M.I. ; Hangyo, M.
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Suita, Japan
Abstract :
We propose a simple way to construct metamaterials with negative refractive index in the terahertz region. The metamaterials composed of dielectric spheres are periodically arranged on a metal-mesh. The transmission spectra show characteristic dispersions peaked at the frequency of the Mie resonance. The combination of the negative permeability of the Mie resonance and the negative permittivity of the metal-mesh is considered to bring about this peak.
Keywords :
permittivity; terahertz metamaterials; titanium compounds; Mie resonance; TiO2; TiO2 spheres; dielectric spheres; metal mesh; metamaterials; negative permittivity; negative refractive index; terahertz response; transmission spectra; Dielectrics; Magnetic materials; Metamaterials; Permeability; Permittivity; Refractive index; Resonant frequency;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380463
