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Circular dichroism of planar chiral magnetic metamaterials

Circular dichroism of planar chiral magnetic metamaterials
Autor: M. Decker, M. W. Klein, M. Wegener, and S. Linden Links:
Quelle: Opt. Lett. 32, 856 (2007)
Datum: 5.3.2007

Abstract:

We propose, fabricate, and study a double-layer chiral planar metamaterial that exhibits pronounced circular dichroism at near-infrared wavelengths. The antisymmetric oscillation modes of the two coupled layers allow local magnetic-dipole moments and enhanced polarization effects compared with similar single-layer systems where only electric-dipole moments occur. Experiment and rigorous theoretical calculations are in good agreement.