Fig. 1
From: Broadband terahertz holography using isotropic VO2 metasurfaces
Schematic diagrams of the designed metasurfaces, which achieves holography within 1.0-2.1 THz. (a) A square broadband hologram achieved by designing the same image for two states of VO2. (b) Broadband holograms achieved by designing different images for two different states of VO2.
