Abstract
A new design of optical antennas consisting of zinc oxide (ZnO) nanorods covered by a thin metal film is proposed. Arrays of highly oriented ZnO nanorods perpendicular to a substrate and covered by a thin silver film have been obtained using methods of carbothermal synthesis and magnetron sputtering. The problems of electromagnetic wave diffraction on a single metal/dielectric nanovibrator (situated at the interface of dielectrics) and on a two-dimensional periodic array of these nanovibrators have been solved. The results of calculations of the electrodynamic characteristics of optical antennas with various lengths have been compared to experimental data.
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Original Russian Text © E.M.Kaidashev, N.V. Lyanguzov, A.M. Lerer, E.A. Raspopova, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 7, pp. 79–86.
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Kaidashev, E.M., Lyanguzov, N.V., Lerer, A.M. et al. Experimental and theoretical investigation of silver-coated ZnO nanorod arrays as antennas for the visible and near-IR spectral range. Tech. Phys. Lett. 40, 313–316 (2014). https://doi.org/10.1134/S106378501404004X
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DOI: https://doi.org/10.1134/S106378501404004X