Terahertz Orbital Angular Momentum: Generation, Detection and Communication  

作　　者：Hang Yang Shilie Zheng Wei He Xianbin Yu Xianmin Zhang 

机构地区：[1]College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China [2]Zhejiang Lab,Hangzhou 311121,China

出　　处：《China Communications》2021年第5期131-152,共22页中国通信（英文版）

基　　金：the National Key Research and Development Program of China(2020YFB18057002018YFB1801500&2018YFB2201700);the Natural National Science Foundation of China under Grant 61771424;the Natural Science Foundation of Zhejiang Province under Grant LZ18F010001 and Zhejiang Lab(no.2020LC0AD01).

摘　　要：To accommodate the ever-increasing wireless capacity,the terahertz(THz)orbital angular momentum(OAM)beam that combines THz radiation and OAM technologies has attracted much attention recently,with contributing efforts to explore new dimensions in the THz region.In this paper,we provide an overview of the generation and detection techniques of THz-OAM beams,as well as their applications in communications.The principle and research status of typical generation and detection methods are surveyed,and the advantages and disadvantages of each method are summarized from a viewpoint of wireless communication.It is shown that developing novel THz components in generating,detecting and(de)multiplexing THz-OAM beams has become the key engine to drive this direction forward.Anyway,beneficial from the combination of infinite orthogonal modes and large bandwidth,THz-OAM beams will have great potential in delivering very large capacity in next generation wireless communications.

关 键 词：terahertz vortex beam orbital angular momentum terahertz generation terahertz detection 

分 类 号：TN929.5[电子电信—通信与信息系统]