Dynamically tunable broadband terahertz modulation based on monolayer graphene metamaterials

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Huang, Zehua^1 ; Wang, Jun^1 ; Han, Qi^1

School of Optoelectronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu

610054, China^1

关键词: AND splits;    Broadband terahertz;    Modulation depth;    Resonance frequencies;    Resonant peaks;    Tera Hertz;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022006/pdf
DOI  :  10.1088/1755-1315/300/2/022006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Dynamically tunable cut wire and split ring resonators (SRRs) based on monolayer graphene metamaterials are presented in terahertz regime. As the Fermi level of the graphene pattern increasing, the resonance frequency presents blue shift and higher intensity. Two resonant peaks that can be modulated dynamically in the range of 2.4-3.4THz and 4.1-5.8THz appear. The monolayer graphene metamaterials realize dynamically broadband terahertz modulation with a minimum modulation depth 63.9% at 2.74THz, and the highest modulation depth 93.3% at 3.4THz.