Abstract
Electromagnetic properties of cylindrical active coated nano-particles comprised of a silica nano-cylinder core layered with a plasmonic concentric nano-shell are investigated for potential nano-sensor applications. Particular attention is devoted to the near-field properties of these particles, as well as to their far-field radiation characteristics, in the presence of an electric or a magnetic line source. A constant frequency canonical gain model is used to account for the gain introduced in the dielectric part of the nano-particle, whereas three different plasmonic materials (silver, gold, and copper) are employed and compared for the nano-shell layers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 9109-9120 |
| Number of pages | 12 |
| Journal | Sensors |
| Volume | 11 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2011 |
| Externally published | Yes |
Keywords
- Core-shell nano-particles
- Plasmonics
- Sensors
ASJC Scopus subject areas
- Analytical Chemistry
- Information Systems
- Atomic and Molecular Physics, and Optics
- Biochemistry
- Instrumentation
- Electrical and Electronic Engineering