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Title

Self-Assembled Plasmonic Core–Shell Clusters with an Isotropic Magnetic Dipole Response in the Visible Range

Authors
Mühlig, Stefan
Scheeler, Sebastian
Pacholski, Claudia
Rockstuhl, Carsten
Lederer, Falk
Published in ACS Nano. 2011, vol. 5, no. 8, p. 6586-6592
Abstract We theoretically analyze, fabricate, and characterize a three-dimensional plasmonic nanostructure that exhibits a strong and isotropic magnetic response in the visible spectral domain. Using two different bottom-up approaches that rely on self-organization and colloidal nanochemistry, we fabricate clusters consisting of dielectric core spheres, which are smaller than the wavelength of the incident radiation and are decorated by a large number of metallic nanospheres. Hence, despite having a complicated inner geometry, such a core–shell particle is sufficiently small to be perceived as an individual object in the far field. The optical properties of such complex plasmonic core–shell particles are discussed for two different core diameters.
Keywords Core−shell nanostructureIsotropic magnetic resonanceLocalized surface plasmon resonanceSelf-assemblyBottom-up technologyColloidal nanochemistry
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Other version: http://pubs.acs.org/doi/abs/10.1021/nn201969h
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Research group Groupe Bürgi
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MÜHLIG, Stefan et al. Self-Assembled Plasmonic Core–Shell Clusters with an Isotropic Magnetic Dipole Response in the Visible Range. In: ACS Nano, 2011, vol. 5, n° 8, p. 6586-6592. https://archive-ouverte.unige.ch/unige:16819

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Deposited on : 2011-08-25

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