Shape matters: plasmonic nanoparticle shape enhances interaction with dielectric substrate.
Journal Article (Journal Article)
Numerical analyses of the ultraviolet and visible plasmonic spectra measured from hemispherical gallium nanostructures on dielectric substrates reveal that resonance frequencies are quite sensitive to illumination angle and polarization in a way that depends on nanostructure size, shape, and substrate. Large, polarization-dependent splittings arise from the broken symmetry of hemispherical gallium nanoparticles on sapphire substrates, inducing strong interactions with the substrate that depend sensitively on the angle of illumination and the nanoparticle diameter.
Full Text
Duke Authors
Cited Authors
- Albella, P; Garcia-Cueto, B; González, F; Moreno, F; Wu, PC; Kim, T-H; Brown, A; Yang, Y; Everitt, HO; Videen, G
Published Date
- September 2011
Published In
Volume / Issue
- 11 / 9
Start / End Page
- 3531 - 3537
PubMed ID
- 21848270
Electronic International Standard Serial Number (EISSN)
- 1530-6992
International Standard Serial Number (ISSN)
- 1530-6984
Digital Object Identifier (DOI)
- 10.1021/nl201783v
Language
- eng