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Deep Electrical Modulation of Terahertz Wave Based on Hybrid Metamaterial-Dielectric-Graphene Structure
Xia, Liangping1,2; Zhang, Xin2; Zhang, Man3; Dang, Suihu1; Huang, Shijian1; Tan, Yong1; Yan, Wenjuan1; Cui, Hong-Liang2
2019-02-01
摘要A terahertz modulation structure based on hybrid metamaterial and graphene is proposed and demonstrated in this work. The metamaterial with a square slit ring array excites terahertz resonance in the slits and enhances the interaction between the terahertz wave and graphene. The graphene layer acting as the active material is tuned by the applied electrical field. With the separation by a dielectric layer between the graphene and the metallic structure, the resonant frequency and transmitted energy are both modulated by the graphene. Experimental result indicates that the modulation depth of the terahertz transmitted amplitude is 65.1% when the applied modulation voltage is tuned 5 V.
关键词terahertz modulation graphene metamaterial
DOI10.3390/app9030507
发表期刊APPLIED SCIENCES-BASEL
ISSN2076-3417
卷号9期号:3页码:7
通讯作者Xia, Liangping(xialp@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000459976200147
语种英语