电环形谐振腔表面几何参数对太赫兹超材料吸收体性能的影响

本文分析了电环形谐振腔的几何参数对超材料吸收体吸收率的影响。文中详细分析了电环形谐振腔参数、介电层（间隔物）厚度和电环形谐振腔厚度对超材料吸收体的影响，在此基础上，设置正交实验分析了几种参数的综合影响，最终获得超材料的理论吸收率。根据上述结果，制备了2个超材料吸收体的原理样机，经实验测得，原理样机的窄带吸收率高于98%。本文的研究成果为高性能吸收器的设计提供了指导。

Influence of the geometric parameters of the electrical ring resonator metasurface on the performance of metamaterial absorbers for terahertz applications

In this paper, the effect of the geometrical parameters of an electrical ring resonator(ERR) on the total absorptivity of metamaterial absorbers is analyzed. In particular, the effect of electrical ring resonator parameters, dielectric layer(spacer) thickness and electrical ring resonator thickness on the absorber of metamaterials are analyzed in detail. On this basis, the orthogonal experiment is set up to analyze the combined effects of several parameters and finally obtain the theoretical absorptivity of metamaterials. Based on the above results, the principle prototype of two metamaterial absorbers is prepared. The results show that the narrowband absorptivity of the prototype is higher than 98%, which provide guidance for the design of high performance absorber.