Experimental Realization of an Extreme-Parameter Omnidirectional Cloak

作     者：Bin Zheng Yihao Yang Zheping Shao Qinghui Yan Nian-Hai Shen Lian Shen Huaping Wang Erping Li Costas MSoukoulis Hongsheng Chen 

作者机构：Key Lab.of Advanced Micro/Nano Electronic Devices&Smart Systems of ZhejiangCollege of Information Science and Electronic EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory of Modern Optical Instrumentation and Te Electromagnetics Academy at Zhejiang UniversityZhejiang UniversityHangzhou 310027China Department of Physics and Astronomy and Ames Laboratory-U.S.DOE Iowa State UniversityAmesIA 50011USA Institute of Marine Electronics EngineeringZhejiang UniversityHangzhou 310058China Institute of Electronic Structure and LaserFORTH71110 HeraklionCreteGreece 

出 版 物：《Research》 (研究（英文）)

年 卷 期：2019年第2019卷第1期

页      面：678-685页

核心收录：

学科分类：07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0824[工学-船舶与海洋工程] 0702[理学-物理学] 

基　　金：The authors thank P.Rebusco at Massachusetts Institute of Technology for critical reading and editing of the manuscript.Work in Zhejiang University was sponsored by the National Natural Science Foundation of China under Grants no.61625502,no.61574127,no.61601408,no.61775193,and no.11704332 the ZJNSF under Granta no.LY17F010008 and no.LY19F010015 the Top-Notch Young Talents Program of China,the Fundamental Research Funds for the Central Universities,and the Innovation Joint Research Center for CyberPhysical-Society.Work at Ames Laboratory was partially supported by the U.S.Department of Energy,Ofce of Basic Energy Science,Division of Materials Sciences and Engineering(Ames Laboratory is operated for the U.S.Department of Energy by Iowa State University under Contract no.DEAC02-07CH11358) Te European Research Council under ERC Advanced Grant no.320081(PHOTOMETA)supported work at FORTH 

主　　题：directional extreme realization 

摘      要：An ideal transformation-based omnidirectional cloak always relies on metamaterials with extreme parameters,which were previously thought to be too difcult to *** such a reason,in previous experimental proposals of invisibility cloaks,the extreme parameters requirements are usually abandoned,leading to inherent ***,we report on the frst experimental demonstration of an omnidirectional cloak that satisfes the extreme parameters requirement,which can hide objects in a homogenous *** of using resonant metamaterials that usually involve unavoidable absorptive loss,the extreme parameters are achieved using a nonresonant metamaterial comprising arrays of subwavelength metallic channels manufactured with 3D metal printing technology.A high level transmission of electromagnetic wave propagating through the present omnidirectional cloak,as well as signifcant reduction of scattering feld,is demonstrated both numerically and *** work may also inspire experimental realizations of the other full-parameter omnidirectional optical devices such as concentrator,rotators,and optical illusion apparatuses.