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Unidirectional Broadband Light Emission from Supported Plasmonic Nanowires
Abstract
Metal nanowires are thought to become key elements in future nanophotonics applications. Here we show that single crystal silver nanowires supported on a dielectric interface behave similar to broadband unidirectional antennas for visible light. The degree of directionality can be controlled through the nanowire radius and its dielectric environment and the effect can be interpreted in terms of so-called leakage radiation from surface plasmons propagating in a single direction along a wire. We measure a forward-to-backward emission ratio exceeding 15 dB and an angular spread of 4° for wires with radii of the order 150 nm on glass in air. These findings could pave the way for development of metal nanowires as subwavelength directors of light in solar, sensor, and spectroscopy applications.
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Cited by
Adato, R., & Altug, H. (2013) · Nature Communications · doi:10.1038/ncomms3154 · Cited by 406
A bimetallic nanoantenna for directional colour routing
Shegai, T., Chen, S., Miljković, V. D., Zengin, G., Johansson, P., & Käll, M. (2011) · Nature Communications · doi:10.1038/ncomms1490 · Cited by 347
Self-citationOptical properties of metallic nanoparticles: manipulating light, heat and forces at the nanoscale
Coronado, E. A., Encina, E. R., & Stefani, F. D. (2011) · Nanoscale · doi:10.1039/c1nr10788g · Cited by 284
Metadata
- Authors
- Shegai, T., Miljković, V. D., Bao, K., Xu, H., Nordlander, P., Johansson, P., & Käll, M.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-02-09
- Volume
- 11
- Issue
- 2
- Pages
- 706-711
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2063863236
- Cited by
- 223
- References
- 0
- FWCI
- 18.05
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shegai, T., Miljković, V. D., Bao, K., Xu, H., Nordlander, P., Johansson, P., & Käll, M. (2011). Unidirectional Broadband Light Emission from Supported Plasmonic Nanowires. Nano Letters. https://doi.org/10.1021/nl103834y
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