Title :
Dependence of THz metamaterial resonance on doping carrier density and pattern Line width
Author :
Lee, Y.U. ; Choi, E.Y. ; Kim, Eun Sok ; Woo, J.H. ; Byung Cheol Park ; Jae Hoon Kim ; Wu, J.W.
Author_Institution :
Dept. of Phys., Ewha Womans Univ., Seoul, South Korea
Abstract :
A series of THz metamaterials were fabricated, which have different pattern line widths of Au and different doping carrier densities of p-type silicon substrate. Transmission spectra of the metamaterials were obtained by a terahertz time domain spectroscopic measurement. Upon increasing the doping carrier density and narrowing the pattern line width, the transmission spectra showed a blue shift in resonance frequency and a broadening of resonance spectral shape, i.e., a decrease in quality factor.
Keywords :
Q-factor; carrier density; doping; gold; terahertz metamaterials; terahertz wave spectra; Au; Si; THz metamaterial resonance; blue shift; doping carrier density; p-type silicon substrate; pattern line width; quality factor; terahertz time domain spectroscopic measurement; transmission spectra; Charge carrier density; Doping; Metamaterials; Resonant frequency; Silicon; Substrates;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6809101
