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Optical Properties of Gold Nanorings
Open accessAbstract
The optical response of ring-shaped gold nanoparticles prepared by colloidal lithography is investigated. Compared to solid gold particles of similar size, nanorings exhibit a redshifted localized surface plasmon that can be tuned over an extended wavelength range by varying the ratio of the ring thickness to its radius. The measured wavelength variation is well reproduced by numerical calculations and interpreted as originating from coupling of dipolar modes at the inner and outer surfaces of the nanorings. The electric field associated with these plasmons exhibits uniform enhancement and polarization in the ring cavity, suggesting applications in near-infrared surface-enhanced spectroscopy and sensing.
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Citations
Cited by
Tailoring Surface Plasmons through the Morphology and Assembly of Metal Nanoparticles
Liz-Marzán, L. M. (2006) · Langmuir · doi:10.1021/la0513353 · Cited by 1,645
Murray, W. A., & Barnes, W. L. (2007) · Advanced Materials · doi:10.1002/adma.200700678 · Cited by 837
Larsson, E. M., Alegret, J., Käll, M., & Sutherland, D. S. (2007) · Nano Letters · doi:10.1021/nl0701612 · Cited by 699
Self-citationZhang, J., Li, Y., Zhang, X., & Yang, B. (2010) · Advanced Materials · doi:10.1002/adma.201000755 · Cited by 649
Nanofabricated media with negative permeability at visible frequencies
Grigorenko, A. N., Geim, A. K., Gleeson, H. F., Zhang, Y., Firsov, A. A., Khrushchev, I. Y., & Petrovic, J. (2005) · Nature · doi:10.1038/nature04242 · Cited by 616
Metadata
- Authors
- Aizpurua, J., Hanarp, P., Sutherland, D. S., Käll, M., Bryant, G. W., & García de Abajo, F. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2003-02-03
- Volume
- 90
- Issue
- 5
- Pages
- 057401-057401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2170755932
- Cited by
- 1,078
- References
- 0
- FWCI
- 25.91
- Type
- journal article
- Language
- en
- Open access
- green
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- Aizpurua, J., Hanarp, P., Sutherland, D. S., Käll, M., Bryant, G. W., & García de Abajo, F. J. (2003). Optical Properties of Gold Nanorings. Physical Review Letters. https://doi.org/10.1103/physrevlett.90.057401
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