Optical properties of surface plasmons induced by the plan of a periodically arranged dielectric spheres on the metal slab

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	Optical properties of surface plasmons induced by the plan of a periodically arranged dielectric spheres on the metal slab
	Zheng, JJ ; Sun, G
刊名	ACTA PHYSICA SINICA
	2005
卷号	54 期号:11 页码:5210
关键词	SUBWAVELENGTH HOLE ARRAYS ENHANCED TRANSMISSION PHOTONIC CRYSTALS FILMS GRATINGS
ISSN号	1000-3290
通讯作者	Zheng, JJ (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Optical properties of a system composed of a metal slab with two planes of periodically arranged dielectric spheres on the metal surface have been investigated. The results obtained from multiple scattering method show that the periodic dielectric spheres on, the upper surface of the metal could induce surface plasmons on the metal-dielectric interface. For a very thick metal slab, the existence of the surface plasmons can be observed by corresponding peaks in absorption spectrum. The position of the absorption peak is mainly determined by the periodicity of dielectric spheres, and is consistent with the analytic theory very well. For the limited thickness of metal slab, there exist two surface plasmon modes, corresponding to symmetric and antisymmetric modes, respectively, and the absorption peak that occurs in the thick metal slab splits into a double-peak strurcture. For a symmetric or antisymmetric surface plasmon, the magnitudes of the electric and magnetic fields are the same on both sides of the metal slab, thus these surface plasmons can results in a strong transmittance. The plane of periodically arranged dielectric spheres beneath the metal slab can lead the surface field out of the metal. and form a transmission plane wave. The results obtained from multiple scattering method show that the transmittance is fairly high when surface plasmons exist. The fundamental physical mechanism is studied in detail, and the occurrence of the surface plasmons, and hence the position of the peak of absorbance or transmittance, can be controlled by adjusting corresponding parameters in the system.
收录类别	SCI
语种	中文
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50349]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zheng, JJ,Sun, G. Optical properties of surface plasmons induced by the plan of a periodically arranged dielectric spheres on the metal slab[J]. ACTA PHYSICA SINICA,2005,54(11):5210.
APA	Zheng, JJ,&Sun, G.(2005).Optical properties of surface plasmons induced by the plan of a periodically arranged dielectric spheres on the metal slab.ACTA PHYSICA SINICA,54(11),5210.
MLA	Zheng, JJ,et al."Optical properties of surface plasmons induced by the plan of a periodically arranged dielectric spheres on the metal slab".ACTA PHYSICA SINICA 54.11(2005):5210.