Pixelated electrically driven Sb2Se3 phase-change metasurfaces

Abstract Sb 2 Se 3 has established itself as a leading phase-change material for reconfigurable photonics, exhibiting broadband transparency and reversible optical transitions. However, previous metasurface implementations remain constrained by offline thermal or optical control mechanisms. We develop an electrically driven platform featuring monolithic integration of Sb 2 Se 3 nanostructures with addressable microheater arrays, achieving localized phase transitions at microsecond timescales. Th