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Substrates Matter: Influence of an Adjacent Dielectric on an Individual Plasmonic Nanoparticle
Abstract
Studying the plasmonic properties of metallic nanoparticles at the individual nanostructure level is critical to our understanding of nanoscale metallic systems. Here we show how the presence of a nearby dielectric substrate modifies the energies of the plasmon modes of a metallic nanoparticle. The adjacent dielectric lifts the degeneracy of the dipole plasmon modes oriented parallel and perpendicular to the substrate, introducing a significant energy splitting that depends strongly on the permittivity of the substrate. This energy splitting can easily be misinterpreted as an anomalously broadened plasmon line shape for excitation of an individual nanoparticle with unpolarized light.
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Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
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Brown, L. V., Yang, X., Zhao, K., Zheng, B. Y., Nordlander, P., & Halas, N. J. (2015) · Nano Letters · doi:10.1021/nl504455s · Cited by 266
Self-citationNanoplasmonic sensors for biointerfacial science
Jackman, J. A., Rahim Ferhan, A., & Cho, N.-J. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00494f · Cited by 258
Knight, M. W., Coenen, T., Yang, Y., Brenny, B. J. M., Losurdo, M., Brown, A. S., Everitt, H. O., & Polman, A. (2015) · ACS Nano · doi:10.1021/nn5072254 · Cited by 174
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Metadata
- Authors
- Knight, M. W., Wu, Y., Lassiter, J. B., Nordlander, P., & Halas, N. J.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-04-10
- Volume
- 9
- Issue
- 5
- Pages
- 2188-2192
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2075500597
- Cited by
- 464
- References
- 1
- FWCI
- 19.99
- Type
- journal article
- Language
- en
- Open access
- closed
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- Knight, M. W., Wu, Y., Lassiter, J. B., Nordlander, P., & Halas, N. J. (2009). Substrates Matter: Influence of an Adjacent Dielectric on an Individual Plasmonic Nanoparticle. Nano Letters. https://doi.org/10.1021/nl900945q
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
