Electron-photon scattering mediated by localized plasmons: A quantitative analysis by eigen-response theory

Kin Hung Fung, Anil Kumar, Nicholas X. Fang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

We show that the scattering interaction between a high energy electron and a photon can be strongly enhanced by different types of localized plasmons in a nontrivial way. The scattering interaction is predicted by an eigen-response theory, numerically verified by finite-difference-time-domain simulation, and experimentally verified by cathodoluminescence spectroscopy. We find that the scattering interaction associated with dark plasmons can be as strong as that of bright plasmons. Such a strong interaction may offer new opportunities to improve single-plasmon detection and high-resolution characterization techniques for high quality plasmonic materials.
Original languageEnglish
Article number045408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number4
DOIs
Publication statusPublished - 13 Jan 2014

Keywords

  • 68.49.Jk
  • 73.20.Mf
  • 73.22.-f
  • 78.67.Bf

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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