Independent and Free Control of Multiple Beams Enabled by Wideband Spin-Decoupled Metasurface (Advanced Optical Materials 6/2025)

Abstract

Spin-Decoupled Metasurface

In article 2401777, Jing-Ya Deng and co-workers propose a spin-decoupled strategy to generate multiple beams based on polarization conversion meta-atom by regulating its cross-polarized components. Combining propagation and PB phases, the deflection angles, polarizations, and topological charges can be independently and freely controlled in wideband, which can be utilized to polarization multiplexing and multichannel meta-devices in communication, imaging, and target detection.