Related Experiment Video
Updated: Apr 22, 2026
07:39
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
6.5K
Optical response of threaded chain plasmons: from capacitive chains to continuous nanorods
Optics Express
|October 17, 2014
Summary
We analyzed threaded plasmonic nanoparticle strings, finding their optical response is tunable. These structures exhibit properties of both nanoparticle chains and nanorods, with tunable near-infrared resonances.
Area of Science:
- Plasmonics
- Nanophotonics
- Optical properties of nanomaterials
Background:
- Metallic nanoparticle strings (chains with threads) are complex nanostructures.
- Understanding their optical response is crucial for nanophotonic applications.
Purpose of the Study:
- To theoretically analyze the optical response of threaded plasmonic nanoparticle strings.
- To investigate the influence of structural parameters and the dielectric environment on optical properties.
Main Methods:
- Full-electrodynamic calculations were employed.
- Analysis of extinction spectra and electric field distributions (amplitude and phase contour plots).
Main Results:
- Dominant near-infrared resonances associated with charge transfer along the entire string.
- Threaded strings exhibit intermediate behavior between nanoparticle chains and nanorods.
- Optical response is broadly tunable across visible and near-infrared regions.
Conclusions:
- Threaded plasmonic nanoparticle strings offer versatile optical properties.
- Structural and environmental modifications allow precise tuning of optical response.
- These nanostructures hold potential for advanced nanophotonic devices.
