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首页> 外文会议>Plasmonics: Metallic nanostructures and their optical properties VIII >Extremely low-loss slow-light modes in plasmonic dielectric hybrid systems
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Extremely low-loss slow-light modes in plasmonic dielectric hybrid systems

机译：等离子体介电混合系统中的极低损耗慢光模式

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摘要

A new class of optical modes arising from the hybridization between one localized plasmon and two orthogonal waveguide modes is described. Of particular interest is our observation that these hybrid modes simultaneously exhibit extremely low-loss and highly dispersive characteristics, which translate into slow light propagation. We propose that this is a new type of classical analogs of the electromagnetically induced transparency (EIT) in an atomic system. Based on a fine balance of geometric and material dispersion in the system, destructive interference of the waveguide modes cancels out the metal loss, resulting in a narrow transparent window within a broad absorption band. In accordance with the developed phenomenological model, we show that the dispersion characteristics of the hybrid modes can be entirely controlled by tuning the coupling strengths between the plasmon and waveguide modes while the mode losses remain the same.
机译：描述了由于一个局部等离子体激元和两个正交波导模式之间的杂交而产生的新型光学模式。特别令人感兴趣的是，我们观察到这些混合模式同时表现出极低的损耗和高度分散的特性，这些特性转化为缓慢的光传播。我们建议这是原子系统中电磁感应透明性（EIT）的新型经典类似物。基于系统中几何形状和材料色散的良好平衡，波导模式的相消干涉抵消了金属损耗，从而在较宽的吸收带内形成了一个狭窄的透明窗口。根据已开发的现象学模型，我们表明可以通过调整等离激元和波导模式之间的耦合强度来完全控制混合模式的色散特性，而模式损耗保持不变。

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  • 来源
  • 会议地点 San Diego CA(US)
  • 作者

    Atsushi Ishikawa; Rupert F. Oulton; Thomas Zentgraf; Xiang Zhang;

  • 作者单位

    NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, Univ. ofrnCalifornia, Berkeley, California 94720, USA. Metamaterials Lab., RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, JAPAN;

    NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, Univ. ofrnCalifornia, Berkeley, California 94720, USA;

    NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, Univ. ofrnCalifornia, Berkeley, California 94720, USA. 4. Physikalisches Institut, Univ. Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany;

    NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, Univ. ofrnCalifornia, Berkeley, California 94720, USA. Materials Sciences Division, Lawrence Berkeley National Lab., Berkeley, California 94720, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 金属材料;
  • 关键词

    Plasmonic hybridization; Coupling; Waveguide-plasmon polaritons; Slow light; Electromagnetic-induced transparency (EIT);

    机译：血浆杂交；耦合;波导等离激元极化子；灯光慢；电磁感应透明度（EIT）;

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