Title :
Terahertz response of fractal metamaterials
Author :
Kubota, S. ; Miyamaru, F. ; Takeda, M.W.
Author_Institution :
Shinshu Univ., Nagano, Japan
Abstract :
We investigate terahertz characteristics of split ring resonators (SRRs) with fractal structure. By applying the fractal structure of Koch curve to the SRRs, the electric and magnetic resonant frequencies can be modified. The position of the resonant frequencies shifts to lower frequency as the fractal level of Koch curve increases. This result shows the possibility of fabricating metamaterials with the extremely small unit cell as compared to the wavelength at operational frequency.
Keywords :
fractals; magnetic permeability; metamaterials; microwave materials; permittivity; terahertz wave devices; terahertz wave spectra; Koch curve; electric permittivity; electric resonant frequencies; fractal metamaterials; fractal structure; magnetic permeability; magnetic resonant frequencies; split ring resonators; terahertz characteristics; Fractals; Magnetic materials; Magnetic resonance; Metamaterials; Optical refraction; Optical ring resonators; Permeability; Permittivity; Resonant frequency; Ultraviolet sources;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324956
