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Strong magnetic response of submicron Silicon particles in the infrared

García-Etxarri, A. ; Gómez-Medina, R. ; Froufe-Pérez, Luis S. ; López, C. ; Chantada, Laura ; Scheffold, Frank ; Aizpurua, J. ; Nieto-Vesperinas, M. ; Sáenz, Juan José

In: Optic Express, 2011, vol. 19, no. 6, p. 4815

High-permittivity dielectric particles with resonant magnetic properties are being explored as constitutive elements of new metamaterials and devices. Magnetic properties of low-loss dielectric nanoparticles in the visible or infrared are not expected due to intrinsic low refractive index of optical media in these regimes. Here we analyze the dipolar electric and magnetic response of lossless...