The directional excitation of surface plasmon polaritons by radially polarized beam with multiple off-axis vortices

doi:10.1016/j.optcom.2019.03.050

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	The directional excitation of surface plasmon polaritons by radially polarized beam with multiple off-axis vortices
	Y.X.Dong; S.X.Xi; B.W.Zhu; X.L.Wang; Q.Q.Mu; S.Wang; Z.Q.Zhu
刊名	Optics Communications
	2019
卷号	443 页码:197-201
关键词	Polarization,Optical vortices,Subwavelength structures,Laser beam,shaping,Surface plasmons,light,Optics
ISSN号	0030-4018
DOI	10.1016/j.optcom.2019.03.050
英文摘要	A method of directional excitation of surface plasmon polaritons (SPPs) is proposed by using radially polarized beam loaded with multiple off-axis vortices. Based on the Kretschmann-Raether three-layer structure, the theory expression for the distribution of SPPs on the silver film surface excited by the radially polarized beam loaded with multiple off-axis vortices is derived. Accordingly, the influence of multiple off-axis vortices on the distribution of focus field and SPPs is analyzed, in which the asymmetry of the SPPs caused by the offaxis vortex is found out. On this basis, the SPPs are directionally excited by adjusting the arrangement and position of multiple off-axis vortices reasonably. This work demonstrated that the off-axis vortices introduce a new degree of freedom for SPPs manipulation, and that the excitation and propagation of SPPs can be dynamically controlled by judiciously arranging the multiple off-axis vortices. Without specially designed metal structures, the all-optical controlled method for SPPs manipulation has great potential in plasmonic tweezers and plasmonic devices.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/63406]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y.X.Dong,S.X.Xi,B.W.Zhu,et al. The directional excitation of surface plasmon polaritons by radially polarized beam with multiple off-axis vortices[J]. Optics Communications,2019,443:197-201.
APA	Y.X.Dong.,S.X.Xi.,B.W.Zhu.,X.L.Wang.,Q.Q.Mu.,...&Z.Q.Zhu.(2019).The directional excitation of surface plasmon polaritons by radially polarized beam with multiple off-axis vortices.Optics Communications,443,197-201.
MLA	Y.X.Dong,et al."The directional excitation of surface plasmon polaritons by radially polarized beam with multiple off-axis vortices".Optics Communications 443(2019):197-201.