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Chin. Opt. Lett.
 Home  List of Issues    Issue 11 , Vol. 09 , 2011    10.3788/COL201109.110015


Compact multiband left-handed metamaterial at terahertz frequencies
Qiujiao Du1;2, Jinsong Liu1, Hongwu Yang3
1 Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, [Huazhong University of Science and Technology], Wuhan 430074, China
2 School of Mathematics and Physics, [China University of Geosciences], Wuhan 430074, China
3 School of Civil Engineering and Mechanics, [Huazhong University of Science and Technology], Wuhan 430074, China

Chin. Opt. Lett., 2011, 09(11): pp.110015

DOI:10.3788/COL201109.110015
Topic:Metamaterials, plasmon polaritons, and waveguides in terahertz region
Keywords(OCIS Code): 160.3918  300.6495  350.3618  

Abstract
We design and analyze a novel multiband left-handed metamaterial based on a fishnet-like structure at terahertz (THz) frequencies. The metamaterial exhibits simultaneous negative refractions around the frequencies of 0.48, 1.05, and 1.19 THz for the electromagnetic (EM) wave normal incidence, and around the frequencies of 0.20, 0.79, and 1.13 THz for parallel incidence. The simulated results verify the left-handed properties. A particularly important observation is the capability of the proposed metamaterial with a single geometrical structure to display multifrequency operations in a unit cell. The compact metamaterial is a major step toward the miniaturization of THz materials and devices suitable for multifrequencies.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2011/7/4
Accepted:2011/8/15
Posted online:2011/10/24

Get Citation: Qiujiao Du, Jinsong Liu, Hongwu Yang, "Compact multiband left-handed metamaterial at terahertz frequencies," Chin. Opt. Lett. 09(11), 110015(2011)

Note: This work was supported by the National Natural Science Foundation of China (Nos. 10974063 and 10876010) and the Foundation Research Funds for the Central Universities (No. 2010MS041).



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