Polarization-controlled asymmetric excitation of surface plasmons
Xu, Q; Zhang, XQ; Yang, QL; Tian, CX; Xu, YH; Zhang, JB; Zhao, HW; Li, YF; Ouyang, CM; Tian, Z; Gu, JQ; Zhang, XX; Han, JG; Zhang, WL
2017
发表期刊OPTICA
ISSN2334-2536
卷号4期号:9页码:1044-1051
文章类型期刊论文
摘要Free-space light can be coupled into propagating surface waves at a metal -dielectric interface, known as surface plasmons (SPs). This process has traditionally faced challenges in preserving the incident polarization information and controlling the directionality of the excited SPs. The recently reported polarization-controlled asymmetric excitation of SPs in metasurfaces has attracted much attention for its promise in developing innovative plasmonic devices. However, the unit elements in these works were purposely designed in certain orthogonal polarizations, i.e., linear or circular polarizations, resulting in limited two-level polarization controllability. Here, we introduce a coupledmode theory to overcome this limit. We demonstrated theoretically and experimentally that, by utilizing the coupling effect between a pair of split-ring-shaped slit resonators, exotic asymmetric excitation of SPs can be obtained under the x-, y-, left-handed circular, and right-handed circular polarization incidences, while the polarization information of the incident light can be preserved in the excited SPs. The versatility of the presented design scheme would offer opportunities for polarization sensing and polarization-controlled plasmonic devices. (C) 2017 Optical Society of America
关键词Antenna Metamaterials Nanoantenna Generation Microscopy Principle Resonance Efficient
DOI10.1364/OPTICA.4.001044
关键词[WOS]ANTENNA ; METAMATERIALS ; NANOANTENNA ; GENERATION ; MICROSCOPY ; PRINCIPLE ; RESONANCE ; EFFICIENT
收录类别SCI
语种英语
WOS记录号WOS:000411226800008
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28772
专题中科院上海应用物理研究所2011-2018年
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Xu, Q,Zhang, XQ,Yang, QL,et al. Polarization-controlled asymmetric excitation of surface plasmons[J]. OPTICA,2017,4(9):1044-1051.
APA Xu, Q.,Zhang, XQ.,Yang, QL.,Tian, CX.,Xu, YH.,...&Zhang, WL.(2017).Polarization-controlled asymmetric excitation of surface plasmons.OPTICA,4(9),1044-1051.
MLA Xu, Q,et al."Polarization-controlled asymmetric excitation of surface plasmons".OPTICA 4.9(2017):1044-1051.
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