纳米光子学
全向天线
物理
光学
光束转向
自旋(空气动力学)
旋光计
几何相位
负折射
超材料
光电子学
梁(结构)
凝聚态物理
旋光法
计算机科学
电信
散射
热力学
天线(收音机)
作者
Lili Tang,Yue Cao,Renchao Jin,Ying‐Hua Wang,Jiaqi Li,Jin Wang,Zheng‐Gao Dong
摘要
Taking advantage of the flexible customization of dynamic and Pancharatnam–Berry phases on meta-atoms, spin-decoupled multifunctional metasurfaces have been realized for optical beams of orthogonal circularly polarized lights, which promotes the diverse development of nanophotonic devices. To date, spin-decoupled metasurfaces can only spatially split and deflect beams in coplanar directions not in non-coplanar, limiting further applications. Here, a single metasurface is proposed to experimentally as well as numerically demonstrate the spin-decoupled omnidirectional anomalous refraction. The results indicate that the three-dimensionally omnidirectional dual-beam refractions are attributed to arbitrary engineering of spin-independent phase gradients along any in-plane orientations of the single metasurface. It is believed that the proposed spin-decoupled omnidirectional metasurfaces are promising candidates for multifunctional applications in compact spin-based nanophotonic systems, such as polarized beam splitting, steering, and polarimeter.
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