电子学报2025，Vol.53Issue(7)：2441-2452,12.DOI:10.12263/DZXB.20250010
基于VO2的超表面器件设计及动态调控特性研究
Design of Metasurface Devices and Research on Dynamic Control Characteristics Based on VO2
摘要
Abstract
The functionality of traditional metasurface is relatively simple,and it is difficult to meet the complex and changeable practical application requirements.To solve this problem,a multifunctional tunable terahertz metasurface based on vanadium dioxide(VO2)is proposed,which consists of two double split rings made of VO2 and metal,a dielectric layer,and a metal substrate.Based on the phase transformation characteristics of VO2 materials and the pancharatnam-berry phase principle,the metasurface unit can present different phase distributions in the two frequency bands of low frequency(0.8～1.2 THz)and high frequency(1.2～1.8 THz),and realize the independent regulation of the reflected circularly polarized wave.On this basis,three terahertz metasurface arrays with different functions are arranged to generate vortex beams and deflected vortex beams with multi-topological charges in the broadband range,as well as to realize the functional switching between the planar focused beams and the vortex beams at 1.2 THz.The proposed metasurface exhibits excellent perfor-mance in dynamic regulation,broadband response,and multi-functional integration,and provides new possibilities for min-iaturization and multi-functionalization of optical components.It has potential application value in terahertz communica-tion,adaptive optical systems,etc.关键词
太赫兹超表面/多功能/涡旋波束/偏转波束/聚焦波束/二氧化钒Key words
terahertz metasurface/multifunctional/vortex beams/deflected beams/focused beams/vanadium dioxide分类
信息技术与安全科学引用本文复制引用
刘海,张颖,王馨艳,高鹏,戴耀威,冯星宇,房俊锋,马鸿飞,王麒尧..基于VO2的超表面器件设计及动态调控特性研究[J].电子学报,2025,53(7):2441-2452,12.基金项目
国家重点研发计划(No.2021YFC2902701) （No.2021YFC2902701）
国家自然科学基金(No.51874301) National Key Research and Development Program of China(No.2021YFC2902701) （No.51874301）
National Natural Science Foundation of China(No.51874301) （No.51874301）
