Spatially decoupled Dirac semimetal and Vanadium dioxide metasurface for quad-mode Terahertz absorption
To overcome the fixed-band limitations of conventional terahertz (THz) absorbers, we propose a spatially decoupled, quad-mode tunable metasurface absorber integrating bulk Dirac semimetal (BDS) and vanadium dioxide (VO2). By synergistically modulating the temperature-driven phase transition of VO2 and the Fermi energ...