Switchable terahertz polarization converter based on VO_(2)metamaterial

作     者：杜皓天 江明珠 曾丽珍 张隆辉 徐卫林 张小文 胡放荣 Haotian Du;Mingzhu Jiang;Lizhen Zeng;Longhui Zhang;Weilin Xu;Xiaowen Zhang;Fangrong Hu

作者机构：Guangxi Key Laboratory of Automatic Detecting Technology and InstrumentGuilin University of Electronic TechnologyGuilin 541004China Guilin Institute of Information TechnologyGuilin 541004China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2022年第31卷第6期

页      面：403-409页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported in part by the National Natural Science Foundation of China(Grant Nos.62065005,61565004,11774288,and 62003107) the Natural Science Foundation of Guangxi Zhuang Autonomous Region,China(Grant Nos.2018GXNSFAA050043,2020GXNSFDA238019,2019JJB110033,and 2017GXNSFBA198029) the Innovation Project of Guangxi Graduate Education,China(Grant Nos.YCSW2021188,YCBZ2021071,and 2020YCXB04) the Foundation from Guangxi Key Laboratory of Automatic Detecting Technology and Instrument(Grant No.YQ21101) the Research and Development Project in Hunan Province,China(Grant No.2020SK2111) 

主　　题：switchable terahertz(THz)metamaterial polarization conversion vanadium dioxide(VO_(2)) 

摘      要：A switchable terahertz(THz)polarization converter based on vanadium dioxide(VO_(2)) metamaterial is *** is a 5-layer structure which containing metal split-ring-resonator(SRR),the first polyimide(PI)spacer,VO_(2) film,the second PI spacer,and metal *** is an array structure and the period in x and y directions is 100μ*** performance is simulated by using finite integration *** simulation results show that,when the VO_(2) is in insulating state,the device is a transmission polarization *** cross-linear polarization conversion can be realized in a broadband of0.70 THz,and the polarization conversion rate(PCR)is higher than 99%.Under thermal stimulus,the VO_(2) changes from insulating state to metallic state,and the device is a reflective polarization *** linear-to-circular polarization conversion can be successfully realized in a broadband of 0.50 THz,and the PCR is higher than 88%.