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以基于超材料的太赫兹波透射为目的,设计并制作了四种亚波长开环共振(SRR)超材料。采用连续太赫兹波作为入射激光源,实验测量了它们在1.04~4.25 THz波段的功率透射属性,并采用CST Studio进行仿真,结果显示这些超材料存在一个位于2.52 THz的全局透射峰和多个局部透射峰。全局透射峰与SRR阵列的微结构和图形配置等参数有关。为了寻找一个具有较高透射效率的太赫兹感应阵列,比较了四种不同超材料微结构的归一化功率透射性能和感应差别。从这些差别中找到特定图案配置的超材料器件用于太赫兹波感应具有借鉴意义。
For the purpose of metamaterial-based terahertz transmission, four sub-wavelength ring-opening resonance (SRR) metamaterials have been designed and fabricated. Using continuous terahertz wave as the incident laser source, their power transmission properties in the 1.04 ~ 4.25 THz band were experimentally measured and simulated by CST Studio. The results show that these metamaterials have a global transmission peak at 2.52 THz and multiple local Transmission peak. The global transmission peak is related to the microstructure and pattern configuration of the SRR array. In order to find a terahertz sensing array with higher transmission efficiency, the normalized power transmissivity and induced difference of four different metamaterials microstructures were compared. From these differences to find a specific pattern configuration of metamaterial devices for terahertz wave induction of reference.