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 |
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Journal | Sensors |
Volume | 11 |
Issue number | 9 |
Pages (from-to) | 9109 |
ISSN | 1424-8220 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- Plasmonics
- Sensors
- Core-shell nano-particles