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
TJ Cui, Email: tjcui@seu.edu.cn
纸质出版日期:2018,
网络出版日期:2018-05-04,
收稿日期:2017-10-04,
修回日期:2018-01-11,
录用日期:2018-01-16
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Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves[J]. LSA, 2018,7(3):18008-11.
Liu, S. et al. Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves. Light: Science & Applications, 3, 18008 (2018).
Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves[J]. LSA, 2018,7(3):18008-11. DOI: 10.1038/lsa.2018.8.
Liu, S. et al. Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves. Light: Science & Applications, 3, 18008 (2018). DOI: 10.1038/lsa.2018.8.
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.
anisotropiccoding metasurfacenegative reflectionnegative surface waveoblique incidencespatial wavesurface wave
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