期刊
JOURNAL OF APPLIED PHYSICS
卷 123, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5029546
关键词
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资金
- Hunan Provincial Innovation Foundation for Postgraduate [CX2017B042]
- National Natural Science Foundation of China [61275174]
We theoretically investigate the sensing characteristics based on tunable Fano resonance in terahertz graphene-layered metamaterials. A Fano phenomenon comes from destructive interference in a narrow frequency range, and it can lead to a high figure of merit of similar to 9786. A simple model for sensitivity is presented, and the sensitivity can reach up to 7885 nm/RIU. Besides, the Fano peak becomes more and more unobvious as symmetry breaking slowly recovers. We use an appropriate theoretical theory to explain the generation of Fano phenomena. Our proposed structure and investigation may pave the way for fundamental research of nanosensor applications and designs in highly integrated optical circuits. Published by AIP Publishing.
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