Polarization-controlled asymmetric excitation of surface plasmons
Type
ArticleAuthors
Xu, QuanZhang, Xueqian
Yang, Quanlong
Tian, Chunxiu
Xu, Yuehong
Zhang, Jianbing
Zhao, Hongwei
Li, Yanfeng

Ouyang, Chunmei
Tian, Zhen
Gu, Jianqiang

Zhang, Xixiang

Han, Jiaguang

Zhang, Weili
KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2017-08-29Online Publication Date
2017-08-29Print Publication Date
2017-09-20Permanent link to this record
http://hdl.handle.net/10754/625998
Metadata
Show full item recordAbstract
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 SocietyJournal
OpticaRelations
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