Tunable broadband terahertz absorber based on graphene metamaterials and VO2

• Published in: Optical materials Vol. 114; p. 110915
• Main Authors: Zhou, Runhua, Jiang, Tingting, Peng, Zhen, Li, Zhenyuan, Zhang, Min, Wang, Shixing, Li, Ling, Liang, Huawei, Ruan, Shuangchen, Su, Hong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2021
• Subjects: Dual-controlled; Metamaterial; Terahertz; Tunable; Dual-controlled; Tunable; Terahertz; Metamaterial

A tunable broadband terahertz (THz) absorber is designed in this paper, which is composed of graphene, silica medium and phase change material Vanadium dioxide (VO2). By simultaneously changing the fermi level of graphene and conductivity of VO2, the dual-controlled absorber can be realized. The res...