基于开口谐振环的多频太赫兹透射特性研究
发布时间：2019-02-16 14:36
【摘要】：通过在双层金属开圆孔阵列并嵌入对称开口谐振环结构,设计了一种新型金属-介质-金属透射增强结构。用电磁仿真软件对该结构的透射特性进行模拟,研究了单元结构的几何参数对透射峰的影响.结果表明:增加开口谐振环可以有效增加透射峰数量,实现了0.2~1.1 THz内的多频超强透射。根据透射峰处金属表面的场分布,透射峰与磁谐振、局域型表面等离子体、传播型表面等离子体、法布里-珀罗谐振及他们之间的杂化耦合有关。结果对深入研究超强透射特性及透射机理具有一定的指导意义,也为太赫兹微波器件设计和性能分析提供了重要参考。
[Abstract]:A novel metal-dielectric metal transmission-enhanced structure is designed by inserting a symmetrical open resonant ring into a double-layer metal circular array. The transmission characteristics of the structure are simulated by electromagnetic simulation software, and the effect of the geometric parameters of the element structure on the transmission peak is studied. The results show that the number of transmission peaks can be increased effectively by increasing the open resonant ring, and the multi-frequency super-strong transmission can be realized in 0.21 THz. According to the field distribution of the metal surface at the transmission peak, the transmission peak is related to the magnetic resonance, the local surface plasma, the propagating surface plasma, the Fabry-Perot resonance and their hybrid coupling. The results have a certain guiding significance for the in-depth study of ultra-strong transmission characteristics and transmission mechanism, and also provide an important reference for the design and performance analysis of terahertz microwave devices.
【作者单位】： 安徽大学计算智能与信号处理教育部重点实验室;
【基金】：国家自然科学基金,51477001~~
【分类号】：O441
本文编号：2424544
[Abstract]:A novel metal-dielectric metal transmission-enhanced structure is designed by inserting a symmetrical open resonant ring into a double-layer metal circular array. The transmission characteristics of the structure are simulated by electromagnetic simulation software, and the effect of the geometric parameters of the element structure on the transmission peak is studied. The results show that the number of transmission peaks can be increased effectively by increasing the open resonant ring, and the multi-frequency super-strong transmission can be realized in 0.21 THz. According to the field distribution of the metal surface at the transmission peak, the transmission peak is related to the magnetic resonance, the local surface plasma, the propagating surface plasma, the Fabry-Perot resonance and their hybrid coupling. The results have a certain guiding significance for the in-depth study of ultra-strong transmission characteristics and transmission mechanism, and also provide an important reference for the design and performance analysis of terahertz microwave devices.
【作者单位】： 安徽大学计算智能与信号处理教育部重点实验室;
【基金】：国家自然科学基金,51477001~~
【分类号】：O441
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