Fig. 3
From: Ultracompact Nanophotonics: Light Emission and Manipulation with Metasurfaces

Thermally reconfigurable and tunable metasurfaces with VO2 a Meta-device consisting of an insulator-to-metal transition material [65], b Beam-steering metasurface with current-induced heating electrode [66], c Metasurface based on selective defect engineering of phase transition material [67], d Relevant writing and erasing process on a rewritable metacanvas [68], and e Simulation of a refractive polariton lens with phase-change material [69]