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Experimental study of optical hyperbolic metamaterials for high-efficiency spatial filtering

机译：高效空间滤波光双曲压超出性的实验研究

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摘要

We experimentally study the optical properties of Al-SiO2 hyperbolic metamaterials. The hyperbolic dispersion and ultrathin Al film similar to 12 nm make the Al-SiO2 multilayers possess transmission efficiency similar to 0.3 for the spatial frequency ranging from k(0) to 1.42 k(0) at 363.8 nm illumination. The atomic concentration of 3% Cu-doping is experimentally demonstrated to obtain Al film similar to 12 nm with root-mean-square roughness similar to 0.49 nm. The fabricated Al-SiO2 multilayers combined with the optimized ZrO2 resonant grating with period 280 nm serves as a structured illumination device, which efficiently converts the P-polarized normal field to the spatial frequency 1.3 k(0) structured field. The measured average transmission intensity of the +/- 1 order is similar to 0.14, and the intensity ratio of the +/- 1 order and 0 order is similar to 65. This Letter is promising for structured illumination, spontaneous emission enhancement, Cherenkov radiation, etc. (C) 2020 Optical Society of America
机译：我们通过实验研究Al-SiO2双曲金属材料的光学性质。类似于12nm的双曲分散和超薄Al膜使Al-SiO 2多层具有类似于0.3的传输效率，其空间频率在363.8nm照明中的k（0）至1.42k（0）。实验证明了3％Cu掺杂的原子浓度，得到了类似于12nm的Al膜，具有与0.49nm的根平均方粗糙度。制造的Al-SiO 2多层与时期280nm的优化ZrO2谐振光栅组合用作结构化照明装置，其有效地将P偏振正常场转换为空间频率1.3k（0）结构化场。 +/- 1阶的测量的平均传输强度类似于0.14，+/- 1阶的强度比和0阶的强度比类似于65.这封信对于结构化的照明，自发排放增强，Cherenkov辐射有望等（c）2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第17期|共4页
  • 作者

    Yao Na; Jiao Jiao; Luo Zhenfei; Wang Du; Cheng Ke; Zhong Xianqiong; Sun Xu; Lu Haifeng;

  • 作者单位

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    China Acad Engn Phys Res Ctr Laser Fus Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Res Ctr Laser Fus Mianyang 621900 Sichuan Peoples R China;

    Chengdu Univ Informat Technol Coll Optoelect Technol Chengdu 610225 Peoples R China;

    Chengdu Univ Informat Technol Coll Optoelect Technol Chengdu 610225 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

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