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Toward tunable light propagation and emission in thin nanostructured plasmonic waveguides
- Source :
- Applied Physics Letters. 92:041111
- Publication Year :
- 2008
- Publisher :
- AIP Publishing, 2008.
-
Abstract
- High-resolution angle-resolved transmission measurements are carried out through nanostructured plasmonic waveguides made of thin gold films with very narrow slits deposited on GaAs substrates. They reveal transmission intensity modulations along the air/metal surface plasmon band, due to the presence of metal/substrate surface modes. Two propagation regimes have been identified. In this plasmonic waveguide, the radiative emission can be enhanced or inhibited by a slight modification of the refractive index of the substrate (δn∕n≃1%), allowing to control the propagation regime of surface plasmon waves along the air/metal interface.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
business.industry
Surface plasmon
Physics::Optics
Substrate (electronics)
Metal
Optics
visual_art
visual_art.visual_art_medium
Radiative transfer
Optoelectronics
Plasmonic solar cell
Surface plasmon resonance
business
Refractive index
Localized surface plasmon
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........de956cd0ed1490adce6d705092271917
- Full Text :
- https://doi.org/10.1063/1.2838348