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Scientific article
Open access
English

Optical properties of a fabricated self-assembled bottom-up bulk metamaterial

Published inOptics Express, vol. 19, no. 10, p. 9607-9616
Publication date2011
Abstract

We investigate the optical properties of a true three-dimensional metamaterial that was fabricated using a self-assembly bottom-up technology. The metamaterial consists of closely packed spherical clusters being formed by a large number of non-touching gold nanoparticles. After presenting experimental results, we apply a generalized Mie theory to analyze its spectral response revealing that it is dominated by a magnetic dipole contribution. By using an effective medium theory we show that the fabricated metamaterial exhibits a dispersive effective permeability, i.e. artificial magnetism. Although this metamaterial is not yet left-handed it might serve as a starting point for achieving bulk metamaterials by using bottom-up approaches.

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Citation (ISO format)
MÜHLIG, S. et al. Optical properties of a fabricated self-assembled bottom-up bulk metamaterial. In: Optics Express, 2011, vol. 19, n° 10, p. 9607–9616. doi: 10.1364/OE.19.009607
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ISSN of the journal1094-4087
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