Generation of diffraction-free beam with winding trajectory based on metasurface holography

被引:2
作者
Xu, Jilian [1 ,2 ]
Lu, Peiyao [1 ,2 ]
Wu, Rui [1 ,2 ]
Jiang, Kun [1 ,2 ]
Jiang, Xiquan [1 ,2 ]
Teng, Shuyun [1 ,2 ]
机构
[1] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Jinan 250014, Peoples R China
[2] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Peoples R China
来源
NEW JOURNAL OF PHYSICS | 2024年 / 26卷 / 04期
关键词
metasurface; holography; diffraction-free beam; LIGHT;
D O I
10.1088/1367-2630/ad397b
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The diffraction-free beams with curved trajectories and shaped wavefronts have wide application prospects in many fields. This paper proposes the generation of diffraction-free beam with winding trajectory and spiral wavefront based on holographic metasurface. The holographic metasurface consists of rotated rectangular nanoholes and the winding trajectory for the generated diffraction-free beam may be in two or three dimensional space under the control of the rotated nanoholes. The multiple diffraction-free beams are exemplified and the performance of holographic metasurfaces are testified by the simulation and experiment results. The utilization of compact metasurface enables the flexible generation of the diffraction-free beams with complex trajectories and tailored wavefronts. It may bring more new applications of diffraction-free beams with on-demand trajectories and customized wavefronts.
引用
收藏
页数:6
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