Generation of traveling surface plasmon waves by free-electron impact

被引：116

作者：

Bashevoy, M. V.

Jonsson, F. ^{[1
]}

Krasavin, A. V.

Zheludev, N. I.

Chen, Y.

Stockman, M. I.

机构：

[1] Univ Southampton, EPSRC Nanophoton Portfolio Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[3] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[4] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/nl060941v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The injection of a beam of free 50 keV electrons into an unstructured gold surface creates a highly localized source of traveling surface plasmons with spectra centered below the surface plasmon resonance frequency. The plasmons were detected by a controlled decoupling into light with a grating at a distance from the excitation point. The dominant contribution to the plasmon generation appears to come from the recombination of d-band holes created by the electron beam excitation.

引用

收藏

页码：1113 / 1115

页数：3

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