SURFACE-PLASMON RESONANCES IN GAS-EVAPORATED AG SMALL PARTICLES - EFFECTS OF AGGREGATION

被引：24

作者：

HAYASHI, S ^{[1
]}

KOGA, R ^{[1
]}

OHTUJI, M ^{[1
]}

YAMAMOTO, K ^{[1
]}

FUJII, M ^{[1
]}

机构：

[1] KOBE UNIV, GRAD SCH SCI & TECHNOL, DIV SCI MAT, KOBE 657, JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 08期

关键词：

D O I：

10.1016/0038-1098(90)90085-P

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Optical extinction spectra of gas-evaporated Ag small particles have been investigated. It is shown that the extinction spectra exhibit a long tail at the long-wavelength side of the surface plasmon resonance. From a comparison of spectra obtained for samples having different degrees of particle aggregation, it is concluded that the tail is caused by the particle aggregation. Theoretical calculations based on the effective medium theory support this conclusion. Enhanced Raman scattering previously observed for the same type of samples can be well explained in terms of the surface plasmon resonance at the tail region. © 1990.

引用

页码：1067 / 1070

页数：4

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