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Photonic spin Hall effect in hyperbolic metamaterials at visible wavelengths

机译:光子旋转霍尔在可见波长的双曲形超材料中的影响

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摘要

The photonic spin Hall effect in transmission is a transverse beam shift of the out-coming beam depending on polarization of the incoming beam. The effect can be significantly enhanced by materials with high anisotropy. We report, to the best of our knowledge, the first experimental demonstration of the photonic spin Hall effect in a multilayer hyperbolic metamaterial at visible wavelengths (wavelengths of 520 and 633 nm). The metamaterial is composed of alternating layers of gold and alumina with deeply subwave-length thicknesses, exhibiting extremely large anisotropy. The angle-resolved polarimetric measurements showed the shift of 165 pm for the metamaterial of 176 nm in thickness. Additionally, the transverse beam shift is extremely sensitive to the variations of the incident angle changing theoretically by 270 pm with 1 milli-radian (0.057 degrees). These features can lead to minituarized spin Hall switches and filters with high angular resolution. (C) 2018 Optical Society of America
机译:透射中的光子旋转霍尔效应是根据进入光束的偏振的截止光束的横向梁偏移。具有高各向异性的材料可以显着提高效果。我们以我们的知识为我们的知识报告,在可见波长(波长为520和633nm)的多层双曲金属材料中的光子旋转霍尔效应的第一个实验证明。超材料由具有深深副厚度的金和氧化铝的交替层组成,表现出极大的各向异性。角度分辨的极性测量结果显示了165μm的厚度为176nm的转移。另外,横向梁移位对于理论上改变的入射角的变化非常敏感270μm,其中270μm具有1毫米 - 弧度(0.057度)。这些功能可导致初级化的旋转霍尔开关和具有高角度分辨率的滤波器。 (c)2018年光学学会

著录项

  • 来源
    《Optics Letters》 |2018年第19期|共4页
  • 作者单位

    Tech Univ Denmark Dept Photon Engn DTU Foton Orsteds Plads 343 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Photon Engn DTU Foton Orsteds Plads 343 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Photon Engn DTU Foton Orsteds Plads 343 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Photon Engn DTU Foton Orsteds Plads 343 DK-2800 Lyngby Denmark;

    Univ Buenos Aires Dept Fis Fac Ciencias Exactas &

    Nat Buenos Aires DF Argentina;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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