Photo-driven Super Absorber as an Active Metamaterial with a Tunable Molecular-Plasmonic Coupling

Authors

  • Mehdi Keshavarz Hedayati,

    1. Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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  • Mojtaba Javaheri,

    1. Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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  • Ahnaf Usman Zillohu,

    1. Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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  • Hala Jarallah El-Khozondar,

    1. Electrical Engineering Department, Islamic University of Gaza, Gaza, Palestine
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  • Muhammad S. Bawa'aneh,

    1. Department of Physics, The Hashemite University, Zarqa, Jordan
    2. Khalifa University of Science, Technology & Research (KUSTAR), Sharjah, UAE
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  • Andrei Lavrinenko,

    1. DTU Fotonik, Technical University of Denmark, Kongens Lyngby, Denmark
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  • Franz Faupel,

    1. Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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  • Mady Elbahri

    Corresponding author
    1. Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
    2. Nanochemistry and Nanoengineering, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
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Abstract

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An optically driven metamaterial with a photoswitchable weak and strong molecular-plasmonic coupling is demonstrated. In this active perfect absorber, the absorption band can be broadened more than 150 nm (split with an energy difference of 780 meV) by UV irradiation, which demonstrates a new class of optically tunable metamaterial absorber for visible frequencies.

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