Vortex localization and OAM selective conversion via cylindrical metagratings

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外文摘要：Vortex waves with orbital angular momentum[OAM]are a highly active research topic in various fields.In this paper,we design and investigate cylindrical metagratings[CMs]with an even number of unit cells that can efficiently achieve vortex localization and specific OAM selective conversion.The multifunctional manipulation of vortex waves and the new OAM conservation law have further been confirmed through analytical calculations and numerical simulations.In addition,we qualitatively and quantitatively determine the OAM range for vortex localization and the OAM value of vortex selective conversion and also explore the stability for performance and potential applications of the designed structure.This work holds potential applications in particle manipulation and optical communication.

外文关键词：

vortex wavescylindrical metagratingsvortex localizationhigh-efficiency transmissionvortex selective conversion

作者：

郝占磊、朱杉、仇成伟、徐亚东、陈焕阳

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作者单位：

Institute of Electromagnetics and Acoustics and Department of Physics,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China

Department of Electrical and Computer Engineering,National University of Singapore,Singapore 117583,Singapore

School of Physical Science and Technology and Jiangsu Key Laboratory of Thin Films,Soochow University,Suzhou 215006,China

基金：

国家自然科学基金国家自然科学基金国家自然科学基金中央高校基本科研业务费专项中央高校基本科研业务费专项国家重点研发计划国家重点研发计划国家重点研发计划国家留学基金委项目

项目编号：

92050102119740101227431320720230102207202200332020YFA07101002022YFA14044002022YFA1404300202106310002

出版年：

2024

DOI：

10.3788/COL202422.033601

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(3)

参考文献量47