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 language | English |
|---|---|
| Article number | 045408 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 89 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 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