Thermally Tunable Ultra-Broadband Terahertz Metasurface Absorber Based on VO2 Phase Transition
Vanadium dioxide (VO2), owing to its reversible insulator-to-metal phase transition, is a promising material for tunable terahertz (THz) devices. In this work, a compact VO2-based terahertz absorber is numerically proposed to achieve thermally tunable ultra-broadband absorption. The proposed single-layer metasurface em...