A Dual-Resonant Metamaterial in Terahertz Regime

ABSTRACT The design, fabrication, and measurement of a dual‐band terahertz (THz) metamaterial based on gallium arsenide substrate are presented. The proposed subwavelength structure provides two distinct electrical resonances near 0.39 and 0.59 THz. Measured results obtained from the THz time‐domain...

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Bibliographic Details
Published in:Microwave and optical technology letters 2013-09, Vol.55 (9), p.2095-2099
Main Authors: Guo, Wanyi, He, Lianxing, Sun, Hao, Li, Biao, Zhao, Hongwei, Sun, Xiaowei
Format: Article
Language:English
Subjects:
Broadband
Dielectric constant
dual-band
Frequency bands
metamaterial
Metamaterials
Microwaves
Permittivity
Reproduction
Simulation
terahertz
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Summary:ABSTRACT The design, fabrication, and measurement of a dual‐band terahertz (THz) metamaterial based on gallium arsenide substrate are presented. The proposed subwavelength structure provides two distinct electrical resonances near 0.39 and 0.59 THz. Measured results obtained from the THz time‐domain spectroscopy show good agreement with the simulation results. Effective medium parameters show negative values of permittivity during two frequency bands of 0.38–0.44 THz and 0.59–0.64 THz. This metamaterial is expected to enhance the realization of broadband and multiband functional devices in THz regime. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2095–2099, 2013
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27765