Transmission terahertz power beam splitter based on a single-layer metal metasurface

被引：4
|
作者：
Zhang, Changchang [1 ,2 ]
Li, Chenxia [1 ]
Fang, Bo [1 ]
Liu, Jianjun [2 ]
Hong, Zhi [2 ]
Jing, Xufeng [1 ,2 ]
机构：
[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Peoples R China
[2] China Jiliang Univ, Ctr THz Res, Hangzhou 310018, Peoples R China
来源：
APPLIED OPTICS | 2022年 / 61卷 / 14期
基金：
中国国家自然科学基金;
关键词：
METAMATERIALS; REFLECTARRAY; BAND; REFLECTION; DESIGN; ANGLE; MODE;
D O I：
10.1364/AO.457116
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A periodic metasurface composed of a single layer of copper structure is proposed. The general transmission power beam splitter is composed of a multilayer structure, which is difficult to fabricate. The proposed single-layer terahertz wave power beam splitter contains only a single-layer circular hole cell structure, and it can control the transmission angle by controlling the arrangement mode of the coding cells. At the same time, we can control the transmission angle and the transmitted energy distribution of each beam based on different incident angles. A simple monolayer round-hole metasurface was prepared and its transmission characteristics were analyzed based on a terahertz time domain spectrometer. Compared with traditional splitter devices, our coding metasurface beam splitters with a single layer have the potential to promote the development of integrated optical systems. (C) 2022 Optica Publishing Group
引用
收藏
页码：4153 / 4159
页数：7
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