Sorting full angular momentum states with Pancharatnam-Berry metasurfaces based on spiral transformation

被引：35

作者：

Wang, Baiming ^{[1
]}

Wen, Yuanhui ^{[1
]}

Zhu, Jiangbo ^{[2
,3
]}

Chen, Yujie ^{[1
]}

Yu, Siyuan ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

[2] Univ Bristol, Merchant Venturers Sch Engn, Photon Grp, Bristol BS8 1UB, Avon, England

[3] Northumbria Univ, Dept Math Phys & Elect Engn, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 11期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

MODE SORTER; PHASE; LIGHT; COMPACT; BEAMS; TRANSMISSION; POLARIZATION; SPIN;

D O I：

10.1364/OE.393859

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Full angular momentum states constitute a complete and higher state space of a photon, which are significant not only for fundamental study of light but also for practical applications utilizing cylindrical optics such as optical fibers. Here we propose and demonstrate a simple yet effective scheme of combining the spiral transformation with Pancharatnam-Berry (PB) metasurfaces for high-resolution sorting of full angular momentum states. The scheme is verified by successfully sorting full angular momentum states with 7 orbital angular momentum states and 2 spin angular momentum states via numerical simulations and experiments. We expect that our work paves the way for simple high-resolution sorting of full angular momentum states, which could be highly useful in both classical and quantum information systems. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：16342 / 16351

页数：10

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