Effects of anisotropic disorder in an optical metamaterial |
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Authors: | C. Helgert C. Rockstuhl C. Etrich E.-B. Kley A. T��nnermann F. Lederer T. Pertsch |
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Affiliation: | 1. Institute of Applied Physics, Friedrich-Schiller-Universit?t, Max-Wien-Platz 1, 07743, Jena, Germany 2. Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universit?t, Max-Wien-Platz 1, 07743, Jena, Germany
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Abstract: | We consider the effect of disorder in one transverse dimension, termed anisotropic disorder, on the optical properties of a metamaterial consisting of cut-wire-pair meta-atoms. The work comprises experimental and numerical studies. The appropriate samples were fabricated and their optical properties quantified in the far-field. For comparison large-scale rigorous numerical simulations were performed. We observe excellent agreement between experiment and theory. Based on our results we reveal how the electric dipole interactions between adjacent meta-atoms affect the overall spectral response of the metamaterial. Our main observation is a polarization-sensitive degradation of the symmetric resonance for anisotropic disorder. |
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