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Observation of magnetization waves in negative-index photonic metamaterials

Observation of magnetization waves in negative-index photonic metamaterials
Autor: G. Dolling, M. Wegener, A. Schädle, S. Burger, and S. Linden Links:
Quelle: Appl. Phys. Lett. 89, 231118 (2006)
Datum: 8.12.2006

Abstract:

By measuring and calculating oblique-incidence transmittance spectra of a negative-index photonic metamaterial layer, the authors infer the in-plane dispersion relation of the magnetization wave. From the geometry and the dispersion shape, the authors conclude that coupling is predominantly via magnetic dipoles for wave propagation along the magnetic-dipole direction. These magnetization waves are the classical analog of magnon excitations of quantum-mechanical spins.