Non-local metasurface

2.2× vortex efficiency

Exploits intrinsic singularities of dipole scatterers and non-local coupling for alignment-free, efficient mm-wave vortex beam generation.

Hang, Xu · Chen, Jingguang · Bo, Wang · Li, Hui · Song, Chunyu · Tan, Qi · Zhao, Zhengyi · Liu, Wenzhe · Shi, Lei · Jie, Li · Yao, Jianquan

PhotoniX 2025

Specifications

Vortex conversion efficiency

{'zh': '2.2', 'en': '~2.2'} times higher