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On the dielectric function tuning of random metal-dielectric nanocomposites for metamaterial applications

Sancho-Parramon, Jordi; Janicki, Vesna; Zorc, Hrvoje (2010) On the dielectric function tuning of random metal-dielectric nanocomposites for metamaterial applications. Optics Express, 18 (26). pp. 26915-26928. ISSN 1094-4087

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The potential of random metal-dielectric nanocomposites as constituent elements of metamaterial structures is explored. Classical effective medium theories indicate that these composites can provide a tunable negative dielectric function with small absorption losses. However, the tuning potential of real random composites is significantly lower than the one predicted by classical theories, due to the underestimation of the spectral range where topological resonances take place. This result suggests that a random mixture consisting of a metal matrix with embedded isolated dielectric inclusions is a promising design guideline for the fabrication of tunable composites for metamaterial purposes.

Item Type: Article
Additional Information: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: surface plasmons; thin films; metamaterials
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Laser and Atomic Research and Development
Project titleProject leaderProject codeProject type
Optička svojstva nanostrukturnih slojeva[119546] Hrvoje Zorc098-0000000-3191MZOS
Depositing User: Vesna Janicki
Date Deposited: 27 Oct 2014 16:31
DOI: 10.1364/OE.18.026915

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