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    Polarization-controlled asymmetric excitation of surface plasmons

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    Type
    Article
    Authors
    Xu, Quan
    Zhang, Xueqian
    Yang, Quanlong
    Tian, Chunxiu
    Xu, Yuehong
    Zhang, Jianbing
    Zhao, Hongwei
    Li, Yanfeng cc
    Ouyang, Chunmei
    Tian, Zhen
    Gu, Jianqiang cc
    Zhang, Xixiang cc
    Han, Jiaguang cc
    Zhang, Weili
    KAUST Department
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-08-29
    Online Publication Date
    2017-08-29
    Print Publication Date
    2017-09-20
    Permanent link to this record
    http://hdl.handle.net/10754/625998
    
    Metadata
    Show full item record
    Abstract
    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 coupled-mode 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.
    Citation
    Xu Q, Zhang X, Yang Q, Tian C, Xu Y, et al. (2017) Polarization-controlled asymmetric excitation of surface plasmons. Optica 4: 1044. Available: http://dx.doi.org/10.1364/OPTICA.4.001044.
    Sponsors
    National Key Basic Research Program of China (2014CB339800); National Natural Science Foundation of China (NSFC) (61420106006, 61422509, 61427814, 61605143); Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) (IRT13033); National Science Foundation (NSF) (ECCS-1232081). Acknowledgment. We thank Veronic E. Tremblay for her advice on optimizing the writing.
    Publisher
    The Optical Society
    Journal
    Optica
    DOI
    10.1364/OPTICA.4.001044
    Additional Links
    https://www.osapublishing.org/optica/abstract.cfm?uri=optica-4-9-1044
    Relations
    Is Supplemented By:
    • [Dataset]
      Xu, Q., Xueqian Zhang, Quanlong Yang, Chunxiu Tian, Yuehong Xu, Jianbing Zhang, Hongwei Zhao, Yanfeng Li, Chunmei Ouyang, & Tian, Z. (2017). Polarization-controlled asymmetric excitation of surface plasmons. Figshare. https://doi.org/10.6084/M9.FIGSHARE.C.3840232.V1. DOI: 10.6084/m9.figshare.c.3840232.v1 Handle: 10754/663886
    ae974a485f413a2113503eed53cd6c53
    10.1364/OPTICA.4.001044
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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