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Low-Power and Ultrafast All-Optical Tunable Nanometer-Scale Photonic Metamaterials

Authors

  • Xiaoyong Hu,

    Corresponding author
    1. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China
    • State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
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  • Yingbo Zhang,

    1. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China
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  • Yulan Fu,

    1. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China
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  • Hong Yang,

    1. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China
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  • Qihuang Gong

    Corresponding author
    1. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China
    • State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
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Abstract

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A nanometer-scale all-optical tunable photonic metamaterial is realized by combining non-linearity enhancement associated with photonic band resonance and quantum confinement. A positive-to-negative switching of the effective dielectric constant is achieved. The operating pump power is reduced by three orders of magnitude, while an ultrafast response time on the order of picoseconds and large tunability are maintained.

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