Chen-Xi Xiang

Dual‐State VO2–Graphene Tunable Terahertz Absorber for Broadband Absorption and Transmission Regulation

Tunable terahertz (THz) absorbers require broadband response, dynamic control, and simple device architectures. Here, we propose a dual‐state VO2–graphene composite metasurface comprising one patterned graphene layer, a SiO2 dielectric spacer, and a VO2 substrate. The thermally induced insulator‐to‐metal transition of...