A terahertz (THz) sensor based on the metamaterial structure, split ring resonator with four-gaps relied on centrosymmetric nested square ring resonator, is presented. The two resonant elements of the metamaterial structure generate a corresponding resonant valley on the transmission spectrum curve in the frequency range from 0.1 to 1.9 THz respectively, and both of these resonant valleys show different redshifts when the surface permittivity of the structure changes. This feature is very suitable for THz sensing, especially the quantum interference effect between the two resonant elements, which results in the formation of an electromagnetically induced transparency (EIT)-like resonance peak on the transmission spectrum curve. The sensing performances are simulated by using commercialized full-wave electromagnetic simulation software. The results demonstrated that the proposed sensor is polarization-insensitive and has a highly boosted sensitivity, which has a promising applica...

中文翻译：

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基于开环谐振器嵌套方环谐振器的太赫兹超材料传感器的设计

提出了一种基于超材料结构的太赫兹（THz）传感器，它是基于中心对称嵌套方环谐振器的四间隙裂环谐振器。超材料结构的两个谐振元件分别在0.1至1.9 THz的频率范围内的透射光谱曲线上产生相应的谐振谷，并且当结构的表面介电常数变化时，这两个谐振谷都显示出不同的红移。此功能非常适合THz感测，尤其是两个谐振元件之间的量子干扰效应，这会导致在透射频谱曲线上形成类似电磁感应的透明（EIT）的谐振峰。使用商业化的全波电磁仿真软件对传感性能进行仿真。