Study on Temperature Adjustable Terahertz Metamaterial Absorber Based on Vanadium ...

标题: Study on Temperature Adjustable Terahertz Metamaterial Absorber Based on Vanadium Dioxide

作者: Zhang, Yubing; Wu, Pinghui; Zhou, Zigang;Chen, Xifang;Yi, Zao;Zhu, Jiayi;Zhang, Tiansheng;Jile, Huge

来源出版物: IEEE ACCESS

出版年: 2020

作者关键词: Broadband; multiband; active tuned; vanadium dioxiderption; high quality factor

研究方向: Computer Science; Engineering; Telecommunications

第一地址: 西南科技大学

入藏号：WOS:000549851000010

中国科学院文献情报中心期刊分区： 工程技术2区

摘要：

In the study of modern optics, the work of terahertz metamaterial absorbers is mostly multi-band perfect absorbers and ultra-wideband perfect absorbers. In contrast, in practical applications, metamaterial absorbers with adjustable resonance frequency or amplitude play an essential role in many forms. Here, we firstly designed an ultra-wideband terahertz metamaterial perfect absorber, achieving over 99% perfect absorption in the 6.6-8.9 THz range. Secondly, based on the absorber, phase change material VO2 was added to improve the structure, and three tunable terahertz metamaterial absorbers based on VO2 were designed, respectively realizing broadband movement and conversion between broadband and multi-band. Also, the terahertz absorber with dynamic tuning characteristics can flexibly control the absorption performance, providing an excellent platform for the realization of terahertz filtering, modulation, and so on.