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Advanced Materials

Electrochemical Modulation of Photonic Metamaterials

Authors

  • Li-Hua Shao,

    1. Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
    2. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    Current affiliation:
    1. These authors have contributed equally to this work
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  • Matthias Ruther,

    Corresponding author
    1. Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
    2. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    3. Institut für Angewandte Physik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
    Current affiliation:
    1. These authors have contributed equally to this work
    • Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany.
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  • Stefan Linden,

    1. Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
    2. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    3. Institut für Angewandte Physik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
    4. Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
    Current affiliation:
    1. These authors have contributed equally to this work
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  • Sabine Essig,

    1. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    2. Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
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  • Kurt Busch,

    1. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    2. Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
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  • Jörg Weissmüller,

    1. Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
    2. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
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  • Martin Wegener

    1. Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
    2. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
    3. Institut für Angewandte Physik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76128 Karlsruhe, Germany
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Abstract

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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