Optical Activity of Planar Achiral Metamaterials

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Authors
Plum, E.
Fedotov, V. A.
Zheludev, N. I.
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Abstract
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We report that the classical phenomena of optical activity and circular dichroism, which are traditionally associated with chirality (helicity) of organic molecules, proteins and inorganic structures, can be observed in non-chiral artificial media. Intriguingly, our metamaterial structure yields exceptionally strong resonant optical activity, which also leads to the appearance of a backward wave, a characteristic sign of negative-index media.
Comment: 5 pages, 5 figures
Keywords
Physics - Optics
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