Optical coating on nano-optical antennas to enhance directional radiation

Yi-Jun Jen; Meng-Jie Lin; Ci-Yao Jheng; Wei-Chih Liu

doi:10.1117/1.JNP.9.093595

24 February 2015 Optical coating on nano-optical antennas to enhance directional radiation

Yi-Jun Jen, Meng-Jie Lin, Ci-Yao Jheng, Wei-Chih Liu

Author Affiliations +

Journal of Nanophotonics, Vol. 9, Issue 1, 093595 (February 2015). https://doi.org/10.1117/1.JNP.9.093595

Abstract

A traditional high-reflection optical coating was applied to enhance the directional radiation of nanoantennas. A highly reflective multilayer upon the top lateral side of a horizontally lying silver nanorod enhances the forward scattering when an optical wave is incident on the bare bottom side of the nanorod. Enhanced forward scattering can thus be observed from a glancing deposited silver nanorod array (NRA). An effective method for coupling the energy of incident light into a NRA involves arranging the NRA in a prism coupling. The highly efficient light coupling effect over a broadband and a wide range of angles results in extra-strong forward light scattering.

Citation Download Citation

Yi-Jun Jen, Meng-Jie Lin, Ci-Yao Jheng, and Wei-Chih Liu "Optical coating on nano-optical antennas to enhance directional radiation," Journal of Nanophotonics 9(1), 093595 (24 February 2015). https://doi.org/10.1117/1.JNP.9.093595

Published: 24 February 2015

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