Broadband angular momentum cascade via a multifocal graphene vortex generator

作     者：Zhongwei Jin Guiyuan Cao Hongtao Wang Han Lin Baohua Jia Cheng-Wei Qiu 金中薇;曹桂源;王洪涛;林翰;贾宝华;仇成伟

作者机构：College of Optical and Electronic TechnologyChina Jiliang UniversityHangzhou 310018China Department of Electrical and Computer EngineeringNational University of SingaporeSingapore 117583Singapore Centre of Translational Atomaterials(CTAM)Faculty of ScienceEngineering and TechnologySwinburne University of TechnologyHawthornVIC 3122Australia School of ScienceRMIT UniversityMelbourneVIC 3000Australia The Australian Research Council(ARC)Industrial Transformation Training Centre in Surface Engineering for Advanced Materials(SEAM)Swinburne University of TechnologyHawthornVIC 3122Australia 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2022年第20卷第10期

页      面：91-95页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：the support from Advanced Research and Technology Innovation Centre(ARTIC)in National University of Singapore(R-261-518-004-720|A-0005947-1600) the Australia Research Council through the Discovery Project Scheme(DP190103186,DP220100603,and FT210100806) the Industrial Transformation Training Centre Scheme(IC180100005) 

主　　题：optical vortex multifocus broadband wavelength tunability graphene 

摘      要：Light beams carrying orbital angular momentum(OAM)have inspired various advanced applications,and such abundant practical applications in turn demand complex generation and manipulation of optical ***,we propose a multifocal graphene vortex generator,which can produce broadband angular momentum cascade containing continuous integer non-diffracting vortex *** device naturally embodies a continuous spiral slit vortex generator and a zone plate,which enables the generation of high-quality continuous vortex modes with deep depths of ***,the generated vortex modes can be simultaneously tuned through incident wavelength and position of the focal *** elegant structure of the device largely improves the design efficiency and can be fabricated by laser nanofabrication in a single ***,the outstanding property of graphene may enable new possibilities in enormous practical applications,even in some harsh environments,such as aerospace.