Angle-independent beam splitter based on spoof surface plasmon

被引：0

作者：

Li-Zheng Yin ^{[1
]}

Feng-Yuan Han ^{[1
]}

Zhao, Jin ^{[1
]}

Yi-Dong Wang ^{[1
]}

Wang, Di ^{[1
]}

Tie-Jun Huang ^{[1
]}

Pu-Kun Liu ^{[1
]}

机构：

[1] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

来源：

2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ) | 2021年

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1109/IRMMW-THz50926.2021.9566990

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, we propose an angle-independent beam splitter based on spoof surface plasmon. Arbitrary incident waves can be divided in half, and scatter towards two specific and independent directions. The proposed beam splitter consists of the upper periodic metal cylinder and the metal grating below. The former is placed to modulate the incident wave and the spoof surface plasmon with the specified wave vector, and the latter is used to support the excited spoof surface plasmon. To verify the proposed functionalities, we design three beam splitters with different splitter angles and calculate their field distributions under the illumination of the same Gaussian beam. The ideal numerical results agree well with the theory.

引用

页数：1

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