Realization of multifunctional transformation based on the vanadium dioxide-assisted metamaterial structure

被引:6
|
作者
Weng, Xuehui [1 ]
Yan, Dexian [1 ]
Qiu, Yu [1 ]
Li, Xiangjun [1 ]
Zhang, Le [1 ]
Li, Jining [2 ]
机构
[1] China Jiliang Univ, Coll Informat Engn, Key Lab Electromagnet Wave Informat Technol & Metr, Hangzhou 310018, Zhejiang, Peoples R China
[2] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
基金
中国国家自然科学基金;
关键词
VO2;
D O I
10.1039/d3cp06105a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, a multifunctional device and a design method are proposed based on the vanadium dioxide (VO2)-assisted metamaterial structure. The structure comprises several layers arranged from top to bottom, including a VO2 patch layer, a polyimide (PI) dielectric layer, an elliptical metal layer, a VO2 thin film layer, another PI dielectric layer, and a bottom metal layer. The research results show that the metamaterial structure enables linear-to-linear (LTL) polarization conversion and linear-to-circular (LTC) polarization conversion across multiple frequency bands when the VO2 is in the insulating state. Moreover, as the VO2 material undergoes a transition from the insulating state to the metallic state, the multifunctional structure can function as a broadband absorber, exhibiting an absorption rate of over 90% within the frequency range of 1.751-3.853 THz, with a relative bandwidth of 75%. This versatile conversion device holds great potential for applications in terahertz system and smart system fields. A multifunctional device and a design method are proposed based on the vanadium dioxide (VO2)-assisted metamaterial structure.
引用
收藏
页码:8247 / 8254
页数:8
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