Jun-Feng Zhao

State-dependent dissipation and broadband circular-polarization selectivity in a VO2–Ag terahertz chiral metasurface

Broadband and tunable discrimination between circular polarizations is important for terahertz polarization control and handedness-selective devices. A reflective chiral metasurface comprising a hybrid VO2–Ag top pattern, a TOPAS spacer, and an Au ground plane is proposed. A Python-CST workflow with derivative-free ada...