Quarter-Wave Plate Metasurfaces for Generating Multi-Channel Vortex Beams

被引：1
|
作者：
Zhang, Ziheng [1 ]
Gu, Manna [1 ]
Cui, Guosen [1 ]
Zhou, Yuxiang [1 ]
Ma, Teng [1 ]
Zhao, Kaixin [1 ]
Li, Yunxiao [1 ]
Liu, Chunxiang [1 ]
Cheng, Chuanfu [1 ]
Ma, Li [2 ]
机构：
[1] Shandong Normal Univ, Sch Phys & Elect, Jinan 250014, Peoples R China
[2] Changzhi Univ, Dept Phys, Changzhi 046011, Peoples R China
来源：
NANOMATERIALS | 2024年 / 14卷 / 04期
基金：
中国国家自然科学基金;
关键词：
metasurface; vortex beams; quarter-wave plate; multi-channel; ORBITAL ANGULAR-MOMENTUM; LIGHT;
D O I：
10.3390/nano14040374
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Metasurfaces of quarter-wave plate (QWP) meta-atoms have exhibited high flexibility and versatile functionalities in the manipulation of light fields. However, the generation of multi-channel vortex beams with the QWP meta-atom metasurfaces presents a significant challenge. In this study, we propose dielectric metasurfaces composed of QWP meta-atoms to manipulate multi-channel vortex beams. QWP meta-atoms, systematically arranged in concentric circular rings, are designed to introduce the modulations via the propagation phase and geometric phase, leading to the generation of co- and cross-polarized vortex beams in distinct channels. Theoretical investigations and simulations are employed to analyze the modulation process, confirming the capability of QWP meta-atom metasurfaces for generating the multi-channel vortex beams. This study presents prospective advancements for the compact, integrated, and multifunctional nanophotonic platforms, which have potential applications in classical physics and quantum domains.
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收藏
页数：11
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