15 October 2012 Bottom-up metamaterials with an isotropic magnetic response in the visible
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Abstract
A theoretical framework to analyze the optical properties of amorphous metamaterials made from meta-atoms which are amenable for a fabrication with bottom-up technologies is introduced. The achievement of an isotropic magnetic resonance in the visible is investigated by suggesting suitable designs for the meta-atoms. Furthermore, two meta-atoms are discussed in detail that were fabricated by self-assembling plasmonic nanoparticles using techniques from the field of colloidal nanochemistry. The metamaterials are experimentally characterized by spectroscopic means and the excitation of the magnetic dipole moment is clearly revealed. Advantages and disadvantages of metamaterials made from such meta-atoms are discussed.
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Stefan Mühlig, Stefan Mühlig, José Dintinger, José Dintinger, Alastair Cunningham, Alastair Cunningham, Toralf Scharf, Toralf Scharf, Thomas Bürgi, Thomas Bürgi, Carsten Rockstuhl, Carsten Rockstuhl, Falk Lederer, Falk Lederer, } "Bottom-up metamaterials with an isotropic magnetic response in the visible", Proc. SPIE 8455, Metamaterials: Fundamentals and Applications V, 84551G (15 October 2012); doi: 10.1117/12.928930; https://doi.org/10.1117/12.928930
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