Measuring phase and polarization singularities of light using spin-multiplexing metasurfaces

被引:33
作者
Fu, Yanan [1 ]
Min, Changjun [1 ]
Yu, Jiahao [1 ]
Xie, Zhenwei [1 ]
Si, Guangyuan [2 ]
Wang, Xianyou [1 ]
Zhang, Yuquan [1 ]
Lei, Ting [1 ]
Lin, Jiao [1 ,2 ,3 ]
Wang, Dapeng [1 ]
Urbach, H. P. [4 ]
Yuan, Xiaocong [1 ]
机构
[1] Shenzhen Univ, Nanophoton Res Ctr, Shenzhen Key Lab Microscale Opt Informat Technol, Shenzhen 518060, Peoples R China
[2] Australian Natl Fabricat Facil, Melbourne Ctr Nanofabricat, Clayton, Vic 3168, Australia
[3] RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia
[4] Delft Univ Technol, Opt Res Grp, Lorentzweg 1, NL-2628 CJ Delft, Netherlands
基金
中国国家自然科学基金;
关键词
ORBITAL ANGULAR-MOMENTUM; OPTICAL VORTICES; TOPOLOGICAL CHARGE; BEAMS; TRANSFORMATION;
D O I
10.1039/c9nr05811g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In recent years, light beams containing phase or polarization singularities, such as optical vortices (OVs) and cylindrical vector beams (CVBs), have contributed to significant applications including optical orbital angular momentum (OAM) communications, particle trapping and manipulation, and super-resolved imaging. However, traditional methods for detecting the phase and polarization singularities of light suffer from drawbacks, such as large device size, complicated optics, and limits in detection function. Here, we propose an alternative method for detecting simultaneously phase and polarization singularities based on a spin-multiplexing metasurface. Both numerical and experimental results demonstrate that the metasurface device can be used to measure accurately the topological charge of OVs and the polarization order of CVBs individually or simultaneously, and exhibit beneficial attributes such as a broadband response, compactness, and system simplification. This method offers great potential in applications such as singular optical beam shaping and high-capacity OAM/CVB multiplexing communication.
引用
收藏
页码:18303 / 18310
页数:8
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