各向异性太赫兹超材料温度控反射透射特性  

Temperature-controlled reflection and transmission properties in anisotropic terahertz metamaterials

作　　者：徐东延 金星日 XU Dongyan;JIN Xingri(College of Science,Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学理学院,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2024年第2期47-53,共7页Journal of Yanbian University（Natural Science Edition）

基　　金：国家自然科学基金(11864043)。

摘　　要：基于双层H型共振器研究了太赫兹波段温度可控的单向无反射和非对称传输.研究表明:当上下两层的各向异性结构错开一定角度时,可分别实现线偏振波的非对称透射、非对称反射和单向无反射.同时,该方案也可以实现圆偏振波的非对称反射和偏振转换,且利用温度变化调控二氧化钒电导率,能够使入射的线偏振和圆偏振波实现可切换的单向无反射、非对称透射和非对称反射.该方案可为传感器和滤波器等器件的研究及设计提供参考.The temperature-controlled unidirectional reflectionlessness and asymmetric transmission in terahertz frequency region are investigated by a double-layer H-type resonator.The results show that when the upper and lower layers of the anisotropic structure are staggered at a certain angle,the asymmetric transmission,asymmetric reflection and unidirectional reflectionlessness of linearly polarized wave can be realized,respectively.Meanwhilethe scheme can also realize the asymmetric reflection and polarization conversion of circularly polarized waves,and can realize the unidirectional reflectionlessness,asymmetric transmission and asymmetric reflection for the linearly polarized and circularly polarized incident waves by adjusting the vanadium dioxide conductivity with temperature change.The scheme provides a reference for the research and design of sensors and filters.

关 键 词：超材料 共振器 波段温控 二氧化钒 反射 透射 偏振 光学 

分 类 号：O431[机械工程—光学工程]