High-resolution surface plasmon imaging of gold nanoparticles by energy-filtered transmission electron microscopy

被引：139

作者：

Schaffer, Bernhard ^{[1
,2
,3
]}

Hohenester, Ulrich ^{[4
]}

Trugler, Andreas ^{[4
]}

Hofer, Ferdinand ^{[1
]}

机构：

[1] Graz Univ Technol, Inst Electron Microscopy & Fine Struct Res, A-8010 Graz, Austria

[2] STFC Daresbury, SuperSTEM Lab, Warrington WA4 4AD, Cheshire, England

[3] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[4] Karl Franzens Univ Graz, Inst Phys, A-8010 Graz, Austria

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 04期

基金：

奥地利科学基金会;

关键词：

boundary-elements methods; gold; nanoparticles; surface plasmons; transmission electron microscopy; NEGATIVE REFRACTION; SPECTROSCOPY; NANOWIRES;

D O I：

10.1103/PhysRevB.79.041401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate the imaging capabilities of energy-filtered transmission electron microscopy at high-energy resolution in the low-energy-loss region, reporting the direct image of a surface plasmon of an elongated gold nanoparticle at energies around 1 eV. Using complimentary model calculations performed within the boundary element method approach we can assign the observed results to the plasmon eigenmodes of the metallic nanoparticle.

引用

页数：4

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