Circulating Spin Angular Momentum Modes Using a Discretized Metasurface

被引：0
|
作者：
Qi, Chu [1 ]
Wong, Alex M. H. [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, State Key Lab Terahertz & Millimeter Waves, Hong Kong, Peoples R China
来源：
PROCEEDINGS OF THE 2019 IEEE ASIA-PACIFIC MICROWAVE CONFERENCE (APMC) | 2019年
关键词：
metasurface; mode conversion; mode circulation; spin angular momentum; REFLECTION;
D O I：
10.1109/apmc46564.2019.9038811
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
We propose the spin angular momentum (SAM) space operation of a metasurface, which can realize the circulation of electromagnetic waves with different SAMs. Under a certain cut-off condition to achieve mode selection in a coaxial waveguide, a metasurface can realize the circulation of SAM modes by converting inputs with SAMs of -1, 0, 1 to outputs with SAMs of 0, 1, -1 respectively. To prove the concept, a structure was designed by placing an ideal transmitting metasurface inside a coaxial waveguide. Simulation results show the circulation of three considered SAM modes with near perfect efficiency.
引用
收藏
页码：777 / 779
页数：3
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