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Li-Hua Shao, Matthias Ruther, Stefan Linden, Sabine Essig, Kurt Busch, Jörg Weissmüller and Martin Wegener Electrochemical Modulation of Photonic Metamaterials Advanced Materials 22

Version of Record online: 11 OCT 2010 | DOI: 10.1002/adma.201002734

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Thin gold split-ring resonators are exposed to an aqueous electrolyte. When varying the electrode potential by about 1 V, up to 55-THz shifts of the resonances centered at around 300 THz are observed. By systematically varying the electrode-potential window, reversible surface-charge effects can be separated from irreversible redistributions of gold atoms.

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