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Shaping light beams in the nanometer scale: A Yagi-Uda nanoantenna in the optical domain
Open accessAbstract
A Yagi-Uda-like optical nanoantenna concept using resonant core-shell plasmonic particles as its ``reflectors'' and ``directors'' is studied numerically. Such particles when placed near an optical dipole source in a certain arrangement may exhibit large induced dipole moments, resulting in shaping the far-field radiation pattern, analogous to the far field of classical Yagi-Uda antennas in the microwave regime. The variation of the ratio of radii in concentric core-shell nanostructure is used to tailor the phase of the polarizabilities of the particles and, consequently, the antenna's far-field pattern. The idea of a nanospectrum analyzer is also briefly proposed for molecular spectroscopy.
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Citations
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
Cited by
Engineering the optical response of plasmonic nanoantennas
Fischer, H., & Martin, O. J. F. (2008) · Optics Express · doi:10.1364/oe.16.009144 · Cited by 444
Engineered SERS Substrates with Multiscale Signal Enhancement: Nanoparticle Cluster Arrays
Yan, B., Thubagere, A., Premasiri, W. R., Ziegler, L. D., Dal Negro, L., & Reinhard, B. M. (2009) · ACS Nano · doi:10.1021/nn800836f · Cited by 384
Metadata
- Authors
- Li, J., Salandrino, A., & Engheta, N.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2007-12-06
- Volume
- 76
- Issue
- 24
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W1511567534
- Cited by
- 227
- References
- 1
- FWCI
- 12.57
- Type
- journal article
- Language
- en
- Open access
- bronze
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