标题：Tunable multiple plasmon-induced transparency in three-dimensional Dirac semimetal metamaterials
作者：Chen, Huan; Zhang, Huiyun; Liu, Maodong; Zhao, Yunkun; Liu, Shande; Zhang, Yuping
作者机构：[Chen, Huan; Zhang, Huiyun; Liu, Maodong; Zhao, Yunkun; Liu, Shande; Zhang, Yuping] Shandong Univ Sci & Technol, Coll Elect Commun & Phys, Qingdao 266 更多
通讯作者地址：[Zhang, HY; Zhang, YP]Shandong Univ Sci & Technol, Coll Elect Commun & Phys, Qingdao 266510, Peoples R China;[Zhang, HY]Shandong Univ, State Key Lab C 更多
关键词：Metamaterial; Terahertz; Plasmonics
摘要：Tunable plasmonic Dirac semimetal metamaterials featuring multiple transparency windows in the terahertz (THz) frequency region are numerically investigated in this study. The proposed multiple plasmon-induced transparency (PIT) system is composed of two types of H-shaped structures, each of which can be regarded as an independent PIT system. Unlike in the conventional metallic PIT systems, the multiple PIT effect in three-dimensional Dirac semimetals can be tuned by varying the Fermi energy instead of the geometrical parameters. The proposed multiple PIT structure could pave the way for potential applications in various areas such as multiple-frequency slow-light devices, optical sensing, and active plasmonic switching.