Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves

查看全文 作　　者：Shuo [1,2]Liu;Tie Jun [1,2]Cui;Ahsan [1,2]Noor;Zui [1,2]Tao;Hao Chi [1,2]Zhang;Guo Dong [1,2]Bai;Yan [1,3]Yang;Xiao Yang [1,4]Zhou

机构地区：[1]State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China;[2]Synergetic Innovation Center of Wireless Communication Technology,Southeast University,Nanjing 210096,China;[3]Centre of Intelligent Acoustics and Immersive Communications and School of Marine Science and Technology,Northwestern Polytechnical University,Xian 710072,China;[4]Jiangsu Xuantu Technology Co.,Ltd.,12 Mozhou East Road,Nanjing 211111,China

出　　处：《Light(Science & Applications)》索引2018年第7卷第1期,共11页

基　　金：supported by the National Natural Science Foundation of China(61138001,61302018,61401089,61401091,61571117,61501112,61501117);the National Instrumentation Program(2013YQ200647);the 111 Project(111-2-05). 摘　　要：Complete control of spatially propagating waves(PWs)and surface waves(SWs)is an ultimate goal that scientists and engineers seek for,in which negative reflection of PW and negative surface wave are two exotic phenomena.Here,we experimentally demonstrate an anisotropic digital coding metasurface capable of controlling both PWs and SWs with a single coding pattern.On the basis of the digital description of coding metasurfaces,a simple coding method is proposed to allow dual functionalities(either PW or SW manipulations)under two orthogonal polarizations at arbitrarily oblique incidences,thus improving the adaptability of digital coding metasurfaces in more practical circumstances.With elaborately designed ellipse-shaped coding particles,we experimentally demonstrate various functions under oblique incidences,including the negative reflection of PW,negative SW,anomalous reflection and their arbitrary combinations,all having good agreements with theoretical and numerical predictions.We believe that the proposed method may enable the digital coding metasurfaces to have broad applications in radar detections,wireless communications and imaging. 关键词：ANISOTROPIC coding metasurface negative reflection negative surface wave oblique incidence spatial wave surface wave

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Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves

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