Asymmetric double split-ring metamaterials absorber in the terahertz region

He Jun; Qingmei Li; Jingling Shen

doi:10.1117/12.1000071

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5 December 2012 Asymmetric double split-ring metamaterials absorber in the terahertz region

He Jun, Qingmei Li, Jingling Shen

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Proceedings Volume 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II; 85620N (2012) https://doi.org/10.1117/12.1000071
Event: Photonics Asia, 2012, Beijing, China

Abstract

We present the simulation of an asymmetric double split-ring metamaterials absorber in terahertz region. The device consists of a metal/dielectric-spacer/metal structure allowing us select absorption by varying the asymmetric characteristics. When the two gaps are gradually away from the center in opposite direction, a giant amplitude modulation is observed at the fundamental inductive-capacitive (LC) resonance and the resonant frequencies are observed to red shifting. Besides, increasing the thickness of dielectric-spacer, the peak absorption can be changed. This theoretical simulation will be good reference for the follow experiments, and these asymmetric metamaterials absorbers is expected to be used as cloaking materials.

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He Jun, Qingmei Li, and Jingling Shen "Asymmetric double split-ring metamaterials absorber in the terahertz region", Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85620N (5 December 2012); https://doi.org/10.1117/12.1000071

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