Polarization-controlled asymmetric excitation of surface plasmons

doi:10.1364/OPTICA.4.001044

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	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
Source Publication	OPTICA
ISSN	2334-2536
Volume	4 Issue:9 Pages:1044-1051
Subtype	期刊论文
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 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
Keyword	Antenna Metamaterials Nanoantenna Generation Microscopy Principle Resonance Efficient
DOI	10.1364/OPTICA.4.001044
WOS Keyword	ANTENNA ; METAMATERIALS ; NANOANTENNA ; GENERATION ; MICROSCOPY ; PRINCIPLE ; RESONANCE ; EFFICIENT
Indexed By	SCI
Language	英语
WOS ID	WOS:000411226800008
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/28772
Collection	中科院上海应用物理研究所2011-2018年
Recommended Citation GB/T 7714	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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