Polarization-controlled asymmetric excitation of surface plasmons

doi:10.1364/OPTICA.4.001044

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017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
刊名	OPTICA
	2017
卷号	4 期号:9 页码:1044-1051
关键词	Antenna Metamaterials Nanoantenna Generation Microscopy Principle Resonance Efficient
ISSN号	2334-2536
DOI	10.1364/OPTICA.4.001044
文献子类	期刊论文
英文摘要	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
WOS关键词	ANTENNA ; METAMATERIALS ; NANOANTENNA ; GENERATION ; MICROSCOPY ; PRINCIPLE ; RESONANCE ; EFFICIENT
语种	英语
WOS记录号	WOS:000411226800008
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28772]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.