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Bulk magnetic terahertz metamaterials based on dielectric microspheres

Abstract : Rigid metamaterials were prepared by embedding TiO2 microspheres into polyethylene. These structures exhibit a series of Mie resonances where the lowest-frequency one is associated with a strong dispersion in the effective magnetic permeability. Using time-domain terahertz spectroscopy, we experimentally demonstrated the magnetic nature of the observed resonance. The presented approach shows a way for low-cost massive fabrication of mechanically stable terahertz metamaterials based on dielectric microresonators.
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https://hal.archives-ouvertes.fr/hal-01373166
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Submitted on : Tuesday, January 19, 2021 - 5:23:25 PM
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Michal Sindler, Christelle Kadlec, Filip Dominec, Petr Kužel, Catherine Elissalde, et al.. Bulk magnetic terahertz metamaterials based on dielectric microspheres. Optics Express, Optical Society of America - OSA Publishing, 2016, 24 (16), pp.18340-18345. ⟨10.1364/OE.24.018340⟩. ⟨hal-01373166⟩

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