INTERACTION BETWEEN LOCALIZED AND PROPAGATING SURFACE-PLASMONS - AG FINE PARTICLES ON AL SURFACE

被引：53

作者：

KUME, T ^{[1
]}

NAKAGAWA, N ^{[1
]}

HAYASHI, S ^{[1
]}

YAMAMOTO, K ^{[1
]}

机构：

[1] KOBE UNIV,FAC ENGN,DEPT ELECT & ELECTR ENGN,KOBE 657,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 93卷 / 02期

关键词：

METALS; NANOSTRUCTURES; LIGHT ABSORPTION AND REFLECTION;

D O I：

10.1016/0038-1098(94)00663-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Samples consisting of Ag fine particles of 4 nm in size placed near to an Al surface were prepared by depositing Ag-SiO2 composite films by an r.f. cosputtering method onto vacuum-evaporated Al films. Angle-scan attenuated total reflection (ATR) measurements were performed over a wide wavelength range (lambda = 350-630nm) covering the resonance region (lambda similar to 410 nm) of localized surface plasmon (LSP) in the Ag particles. It was found that the existence of Ag fine particles near to the Al surface led to a deformation of the dispersion curve of the surface plasmon polariton (SPP) propagating on the Al surface, in particular, in the LSP resonance region. A pronounced increase in the SPP damping in the LSP resonance region was also observed. The interaction between LSP and SPP was found to become much stronger as the distance between the particles and the surface decreased.

引用

页码：171 / 175

页数：5

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