Dual perfect vectorial vortex beam generation with a single spin-multiplexed metasurface

被引：0
|
作者：
Yang, Jiaqi [1 ]
Hakala, Tommi k.
Friberg, Ari t. [1 ]
机构：
[1] Univ Eastern Finland, Ctr Photon Sci, POB 111, FI-80101 Joensuu, Finland
来源：
OPTICS EXPRESS | 2024年 / 32卷 / 11期
关键词：
ORBITAL ANGULAR-MOMENTUM; PHASE; LIGHT;
D O I：
10.1364/OE.521179
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Perfect optical vortex beams (POVBs) carrying orbital angular momentum (OAM) possess annular intensity profiles that are independent of the topological charge. Unlike POVBs, perfect vectorial vortex beams (PVVBs) not only carry orbital angular momentum but also exhibit spin angular momentum (SAM). By incorporating a Dammann vortex grating (DVG) on an all-dielectric metasurface, we demonstrate an approach to create a pair of PVVBs on a hybrid -order Poincar & eacute; sphere. Benefiting flexible phase modulation, by engineering the DVG and changing the input-beam state we are able to freely tailor the topological OAM and polarization eigenstates of the output PVVBs. This work demonstrates a versatile flat-optics platform for high-quality PVVB generation and may pave the way for applications in optical communication and quantum information processing.
引用
收藏
页码：20242 / 20255
页数：14
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