Reconfigurable Wide-angle Broadband Terahertz Wave Antireflection using Nonvolatile Phase-change Material

Actively wide-angle broadband terahertz (THz) antireflection (AR) coatings with a flexible reconfigurability have a great potential for the development of next-generation versatile THz components and systems with high performance. Here, we present a reconfigurable wide-angle broadband THz AR coating using a phase change material Ge