Generation of orbital angular momentum and focused beams with tri-layer medium metamaterial*

被引：11

作者：

Sun, Zhi-Chao ^{[1
]}

Yan, Meng-Yao ^{[1
]}

Xu, Bi-Jun ^{[1
]}

机构：

[1] Zhejiang Univ Sci & Technol, Sch Sci, Hangzhou 310023, Peoples R China

来源：

CHINESE PHYSICS B | 2020年 / 29卷 / 10期

关键词：

metamaterial; phase shift; wave-front shaping; orbital angular momentum; METASURFACE; WAVE;

D O I：

10.1088/1674-1056/abab79

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a metal/dielectric tri-layer metamaterial for wavefront shaping. By arranging the element in an array with a constant phase gradient and irradiated it with a plane wave, focused and focused vortex beams can be obtained. The designed metamaterial features the excellent capability of focused/focused vortex beams generation within the operating frequency range of 30 GHz-34 GHz. The simulation results are consistent with the theoretical analyses.

引用

页数：5

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