Realization of Beam Steering Based on Plane Spiral Orbital Angular Momentum Wave
Realization of Beam Steering Based on Plane Spiral Orbital Angular Momentum Wave
复制标题
基于平面螺旋轨道角动量波的光束转向的实现
DOI：
10.1109/tap.2017.2786297
复制
发表时间：
2018-03-01
影响因子：
5.7
通讯作者：
Chen, Zhi Ning
中科院分区：
文献类型：
--
作者：
Zheng, Shilie;Chen, Yiling;Chen, Zhi Ning
A new form of plane spiral orbital angular momentum (PS-OAM) carrying wave with the spiral harmonics of exp(-jl phi) as a complete set of eigenmodes is proposed to realize beam steering. Such a wave possesses the fundamental characteristics of an OAM-carrying wave, i.e., a spiral phase distribution, yet propagates along transverse directions. Hence, it owes unique advantages for use in realizing desired radiation beams, while avoids the puzzles encountered by traditional OAM-carrying beams. Various OAM mode grouping using the superposition of PS-OAM waves are demonstrated here via theoretical calculations as well as experimental verifications. The generation methods for PS-OAM waves are also proposed and experimentally validated to authenticate the feasibility. Both the calculated and experimental results show that the PS-OAM grouping is capable of providing a practical realization of eigenmode beamforming.
