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Many-Body Subradiant Excitations in Metamaterial Arrays: Experiment and Theory

机译：超材料阵列中的多体次辐射激发：实验和理论

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摘要

Subradiant excitations, originally predicted by Dicke, have posed a long-standing challenge in physics owing to their weak radiative coupling to environment. Here we engineer massive coherently driven classical subradiance in planar metamaterial arrays as a spatially extended eigenmode comprising over 1000 metamolecules. By comparing the near-and far-field response in large-scale numerical simulations with those in experimental observations we identify strong evidence for classically correlated multi-metamolecule subradiant states that dominate the total excitation energy. We show that similar spatially extended many-body subradiance can also exist in plasmonic metamaterial arrays at optical frequencies.
机译：最初由迪克（Dicke）预测的亚辐射激发由于其与环境的辐射耦合较弱而在物理学上提出了长期的挑战。在这里，我们将平面超材料阵列中的大量相干驱动经典亚辐射工程化为包含超过1000个超分子的空间扩展本征模。通过将大规模数值模拟中的近场和远场响应与实验观察中的响应进行比较，我们为主导整个激发能量的经典相关多分子亚辐射态确定了有力的证据。我们表明，类似的空间扩展多体亚辐射度也可以存在于等离激元超材料阵列中的光频率。

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  • 来源
    《Physical review letters》 |2017年第5期|053901.1-053901.6|共6页
  • 作者

    Jenkins Stewart D.; Ruostekoski Janne; Papasimakis Nikitas; Savo Salvatore; Zheludev Nikolay I.;

  • 作者单位

    Univ Southampton, Math Sci, Southampton SO17 1BJ, Hants, England|Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England;

    Univ Southampton, Math Sci, Southampton SO17 1BJ, Hants, England|Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England;

    Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England|Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England;

    Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England|Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England|TetraScience Inc, 114 Western Ave, Boston, MA 02134 USA;

    Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England|Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England|Nanyang Technol Univ, Sch Phys & Math Sci, Ctr Disrupt Photon Technol, Singapore 637378, Singapore|Nanyang Technol Univ, Photon Inst, Singapore 637378, Singapore;

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