Terahertz Tunable Metasurface Lens Based on Vanadium Dioxide Phase Transition

被引：58
作者：
He, Jingwen [1 ,2 ,3 ]
Xie, Zhenwei [1 ,2 ,3 ]
Sun, Wenfeng [2 ,3 ]
Wang, Xinke [2 ,3 ]
Ji, Yanda [4 ]
Wang, Sen [1 ,2 ,3 ]
Lin, Yuan [4 ]
Zhang, Yan [1 ,2 ,3 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
[2] Capital Normal Univ, Beijing Key Lab Metamat & Devices, Dept Phys, Beijing 100048, Peoples R China
[3] Minist Educ, Key Lab Terahertz Optoelect, Beijing 100048, Peoples R China
[4] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China
来源：
PLASMONICS | 2016年 / 11卷 / 05期
基金：
国家高技术研究发展计划(863计划); 北京市自然科学基金; 中国国家自然科学基金;
关键词：
Tunable metasurface lens; Vanadium dioxide; Terahertz; BALANCED ELECTROOPTIC DETECTION; METAL-INSULATOR-TRANSITION; GRAPHENE; METAMATERIAL; FILM; GENERATION; PLASMONICS; CONVERSION; REFRACTION;
D O I：
10.1007/s11468-015-0173-2
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：
Based on the insulator-to-metal phase transition of vanadium dioxide (VO (2)), a terahertz (THz) tunable metasurface lens (TML), which consists of a THz metasurface lens and a VO (2) film on Al (2) O (3) substrate, is proposed and experimentally verified. The focal intensity of the TML can be thermally controlled. The changes of the cross-polarized amplitude spectrum and the focal intensity during the heating and cooling processes are also investigated in detail. Any desired focal intensity can be obtained by adjusting the TML temperature. This TML and its approach will be of great significance for the development of the THz active devices.
引用
收藏
页码：1285 / 1290
页数：6
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