Plasmonic nanoantenna arrays for the visible

Plasmonic nanoantenna arrays for the visible

Gold nanoantenna arrays composed of paired elliptical cylinders are fabricated and studied experimentally and numerically. The arrays show far-field spectra resonances in the visible range for two orthogonal polarizations. Finite element method is used to accurately simulate the far-field spectra wi...

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Veröffentlicht in:Metamaterials 2008-05, Vol.2 (1), p.45-51
Hauptverfasser: Liu, Zhengtong, Boltasseva, Alexandra, Pedersen, Rasmus H., Bakker, Reuben, Kildishev, Alexander V., Drachev, Vladimir P., Shalaev, Vladimir M.
Format: Artikel
Sprache:eng
Schlagworte:
Drude–Lorentz model
Near-field optics
Plasmonics
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Zusammenfassung:Gold nanoantenna arrays composed of paired elliptical cylinders are fabricated and studied experimentally and numerically. The arrays show far-field spectra resonances in the visible range for two orthogonal polarizations. Finite element method is used to accurately simulate the far-field spectra with modified gold optical properties. The resonance wavelengths and electrical field enhancement are studied as functions of the antenna dimensions. The field enhancement is found to be inversely proportional to the gap size.
ISSN:1873-1988
1878-0288
DOI:10.1016/j.metmat.2008.03.001