Title :
A broad/dual-band terahertz metamaterial
Author :
Wanyi Guo ; Lianxing He ; Xiaowei Sun
Author_Institution :
Key Lab. of Terahertz Solid-State Technol., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
The design, fabrication and measurement of a broad/dual-band terahertz (THz) metamaterial based on gallium arsenide substrate are presented. The proposed Modified Split-Ring Resonator (MSRR) provides two distinct strong electrically resonances near 0.515 THz and 0.74 THz. Effective medium parameters show negative values of permittivity during two broad frequency bands of 0.492-0.693 THz and 0.727-0.811 THz. Measured results obtained from the Terahertz time-domain spectroscopy (THz-TDS) show good agreement with the simulation results. This metamaterial is expected to enhance the realization of broadband and multi-band functional materials and devices in THz regime.
Keywords :
gallium arsenide; permittivity; terahertz metamaterials; terahertz spectroscopy; GaAs; broad/dual-band terahertz metamaterial; broadband functional materials; frequency 0.492 THz to 0.693 THz; frequency 0.515 THz; frequency 0.727 THz to 0.811 THz; frequency 0.74 THz; multi-band functional materials; permittivity; split-ring resonator; terahertz time-domain spectroscopy; Broadband communication; Dual band; Gallium arsenide; Magnetic materials; Metamaterials; Permittivity; Resonant frequency; Terahertz; broadband; dual band; metamaterial;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616805
