TiO2 microsphere-based metamaterials exhibiting effective magnetic response in the terahertz regime

Riad Yahiaoui (1) , Mario Maglione (2) , Christelle Kalde (3) , Filip Kaldec (3) , Petr Kužel (3) , U-Chan Chung (2) , Catherine Elissalde (2)

1 LOMA - Laboratoire Ondes et Matière d'Aquitaine
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
3 Institute of Physics

Thin layers of all-dielectric metamaterials based on TiO2 spherical particle resonators are investigated. A new method based on spray drying of dissolved nanoparticles is used in the fabrication process. Spectral footprints of electric and magnetic dipoles are reported numerically and through experimental tests. It is a promising step for the construction of novel three-dimensional isotropic metamaterials exhibiting desired electromagnetic properties for terahertz applications.

Domaines: Optique [physics.optics]

Riad Yahiaoui, Mario Maglione, Christelle Kalde, Filip Kaldec, Petr Kužel, et al.. TiO2 microsphere-based metamaterials exhibiting effective magnetic response in the terahertz regime. Applied physics. A, Materials science & processing, 2012, 109 (4), pp.891-894. ⟨10.1007/S00339-012-7356-X⟩. ⟨hal-00752457⟩