Chiral coding metasurfaces with integrated vanadium dioxide for thermo-optic modulation of terahertz waves

ld of electromagnetics, there are many limitations to achieve simultaneous polarization conversion and wavefront control. The chiral coding metasurface based on the Pancharatnam-Berry (P–B) phase effectively helps to alleviate these restrictions and shows strong control over the terahertz radiation field. In this paper, the principle of chirality is theoretically analyzed and verified by simulation results. The circular dichroism ΔR (chiral...