Compact plasmonic dichroic splitting with high splitting ratio based on   a cascaded-grating structure

doi:10.1364/JOSAB.31.000387

CORC > 北京大学 > 信息科学技术学院

	Compact plasmonic dichroic splitting with high splitting ratio based on a cascaded-grating structure
	Li, Kun ; Xiao, Feng ; Lu, Fan ; Liu, Dalin ; Alameh, Kamal ; Xu, Anshi
刊名	journal of the optical society of america b optical physics
	2014
关键词	SURFACE-PLASMONS WAVE-GUIDE SLIT EFFICIENT APERTURE OPTICS
DOI	10.1364/JOSAB.31.000387
英文摘要	A compact dichroic surface plasmon polariton (SPP) splitting scheme composed of two cascaded subgratings of different dimensions is proposed and investigated. The normal incident photons illuminated on the dichroic splitting structure are converted to surface plasmons traveling to the left or right depending on the wavelength. The operation principle is clarified and a coupled-mode model is developed to facilitate structure design. The generated SPPs propagating to the left and right directions on the metal surface can be manipulated nearly independently by altering the left and right subgrating, respectively. Proof-of-principle demonstrations show that a remarkable property of high splitting ratios is achieved with 43.0 dB at wavelength 1310 nm (left: right power contrast) and 35.7 dB at wavelength 1550 nm (right: left power contrast). The proposed splitting concept has general applicability across other operating wavelengths, such as the visible and near-infrared range. (C) 2014 Optical Society of America; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331071400032&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Optics; SCI(E); EI; 3; ARTICLE; lyrxas@pku.edu.cn; 2; 387-392; 31
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/291651]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Kun,Xiao, Feng,Lu, Fan,et al. Compact plasmonic dichroic splitting with high splitting ratio based on a cascaded-grating structure[J]. journal of the optical society of america b optical physics,2014.
APA	Li, Kun,Xiao, Feng,Lu, Fan,Liu, Dalin,Alameh, Kamal,&Xu, Anshi.(2014).Compact plasmonic dichroic splitting with high splitting ratio based on a cascaded-grating structure.journal of the optical society of america b optical physics.
MLA	Li, Kun,et al."Compact plasmonic dichroic splitting with high splitting ratio based on a cascaded-grating structure".journal of the optical society of america b optical physics (2014).