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Journal of Nanophotonics

Polarization insensitivity in epsilon-near-zero metamaterial from plasmonic aluminum-doped zinc oxide nanoparticles
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Paper Abstract

We investigated the optical characteristics and polarization insensitivity of an epsilon-near-zero metamaterial structure comprising aluminum-doped zinc oxide nanoparticles (NPs) hosted by a medium of ligands. By the use of an equivalent circuit model for the pairs of NPs, or dimers, and also of fullwave simulations, we studied the response of this self-assembled metamaterial for near-infrared applications. Considering the coupling of localized surface plasmons, we demonstrated the dominance of a certain dimer configuration and then applied this result to the whole medium as a simplifying approximation for a random structure. The consequent results showed a polarization insensitivity and also a general redshift in the plasmon resonance of the structure.

Paper Details

Date Published: 6 January 2014
PDF: 8 pages
J. Nanophoton. 8(1) 083898 doi: 10.1117/1.JNP.8.083898
Published in: Journal of Nanophotonics Volume 8, Issue 1
Show Author Affiliations
Hossein Alisafaee, The Univ. of North Carolina at Charlotte (United States)
Michael A. Fiddy, The Univ. of North Carolina at Charlotte (United States)


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