Surface plasmon excitation of Au and Ag in scanning probe energy loss spectroscopy

被引：30

作者：

Pulisciano, A. ^{[1
]}

Park, S. J. ^{[1
]}

Palmer, R. E. ^{[1
]}

机构：

[1] Univ Birmingham, Sch Phys & Astron, Nanoscale Phys Res Lab, Birmingham B15 2TT, W Midlands, England

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 21期

基金：

英国工程与自然科学研究理事会;

关键词：

electron energy loss spectra; field emission; gold; metallic thin films; silver; surface plasmons;

D O I：

10.1063/1.3006435

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We explore the incident energy dependence of the electronic excitation spectra of Au and Ag films in scanning probe energy loss spectroscopy (SPELS) and also high resolution electron energy loss spectroscopy. We show that the spectra obtained in SPELS depend strongly on the incident electron beam energy. In the case of Au, interband transitions mask the surface plasmon unless the field emission voltage is reduced to similar to 100 V, whereas there is a clear surface plasmon peak above 300 V for Ag.

引用

页数：3

共 16 条

[1]

[Anonymous], 1995, HDB OPTICAL CONSTANT

[2] DISPERSION STUDY OF THE AG(111) SURFACE-PLASMON (SP) BY MEANS OF HIGH-RESOLUTION ELECTRON-ENERGY LOSS SPECTROSCOPY (HREELS) [J].