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

Mühlig, S.
Rockstuhl, C.
Yannopapas, V.
Shalkevich, N.
Lederer, F.
Published in Optics Express. 2011, vol. 19, no. 10, p. 9607-9616
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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Research group Groupe Bürgi
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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. https://archive-ouverte.unige.ch/unige:98050

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Deposited on : 2017-10-25

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