Electron Energy Loss Spectroscopy of a Chiral Plasmonic Structure

被引：3

作者：

Paterson, G. W. ^{[1
]}

Karimullah, A. ^{[2
]}

Williamson, S. D. R. ^{[1
]}

Kadodwala, M. ^{[2
]}

MacLaren, D. A. ^{[1
]}

机构：

[1] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Glasgow, Sch Chem, Glasgow G12 8QQ, Lanark, Scotland

来源：

ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE (EMAG2015) | 2015年 / 644卷

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1088/1742-6596/644/1/012005

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

A detailed analysis of the plasmonic excitations within a nanopatterned gold chiral biosensor element, measured by scanning transmission electron microscopy electron energy loss spectroscopy, is presented. We discuss aspects of data acquisition, processing, analysis and simulation. The localised surface plasmonic resonance modes in the structure are extracted using non-negative matrix factorisation and we use simulations to correlate notable deviations from the idealised spectrum to nanometric fabrication imperfections. The methodology presented has wide applicability to a variety of metamaterials.

引用

页数：4

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