Special Section on Metamaterials and Photonic Nanostructures

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

[+] Author Affiliations
Hossein Alisafaee

University of North Carolina at Charlotte, Center for Optoelectronics and Optical Communications, 9201 University City Boulevard, Charlotte, North Carolina 28223-0001

Michael A. Fiddy

University of North Carolina at Charlotte, Center for Optoelectronics and Optical Communications, 9201 University City Boulevard, Charlotte, North Carolina 28223-0001

J. Nanophoton. 8(1), 083898 (Jan 06, 2014). doi:10.1117/1.JNP.8.083898
History: Received September 22, 2013; Revised November 27, 2013; Accepted December 2, 2013
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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.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Hossein Alisafaee and Michael A. Fiddy
"Polarization insensitivity in epsilon-near-zero metamaterial from plasmonic aluminum-doped zinc oxide nanoparticles", J. Nanophoton. 8(1), 083898 (Jan 06, 2014). ; http://dx.doi.org/10.1117/1.JNP.8.083898


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