Journal
CHINESE PHYSICS LETTERS
Volume 28, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/28/1/014201
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Funding
- National Natural Science Foundation of China [10974063]
- Research Foundation of Wuhan National Laboratory [P080008]
- National Basic Research Program of China [2007CB310403]
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We present the design of a dual-band left-handed metamaterial with fishnet structure in the terahertz regime. Its left-handed properties are described by the retrieved effective electromagnetic parameters. We introduce an equivalent circuit which offers a theoretical explanation for the left-handed behavior of the dual-band fishnet metamaterial, and investigate its losses receiving higher figure of merit. The design is beneficial to the development of frequency agile and broadband THz materials and devices. The dual-band fishnet metamaterial can be extended to infrared and optical frequency ranges by regulating the structural parameters.
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