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首页> 外文期刊>Advanced Functional Materials >Broadband Enhanced Chirality with Tunable Response in Hybrid Plasmonic Helical Metamaterials
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Broadband Enhanced Chirality with Tunable Response in Hybrid Plasmonic Helical Metamaterials

机译：宽带增强了杂交等级螺旋超材料中可调谐响应的手性

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摘要

Designing broadband enhanced chirality is of strong interest to the emerging fields of chiral chemistry and sensing, or to control the spin orbital momentum of photons in recently introduced nanophotonic chiral quantum and classical optical applications. However, chiral light-matter interactions have an extremely weak nature, are difficult to control and enhance, and cannot be made tunable or broadband. In addition, planar ultrathin nanophotonic structures to achieve strong, broadband, and tunable chirality at the technologically important visible to ultraviolet spectrum still remain elusive. Here, these important problems are tackled by experimentally demonstrating and theoretically verifying spectrally tunable, extremely large, and broadband chiroptical response by nanohelical metamaterials. The reported new designs of all-dielectric and dielectric-metallic (hybrid) plasmonic metamaterials permit the largest and broadest ever measured chiral Kuhn's dissymmetry factor achieved by a large-scale nanophotonic structure. In addition, the strong circular dichroism of the presented bottom-up fabricated optical metamaterials can be tuned by varying their dimensions and proportions between their dielectric and plasmonic helical subsections. The currently demonstrated ultrathin optical metamaterials are expected to provide a substantial boost to the developing field of chiroptics leading to significantly enhanced and broadband chiral light-matter interactions at the nanoscale.
机译：设计宽带增强的手性是对手性化学和感测的新兴领域的兴趣是强烈的兴趣，或者控制最近引入的纳米光调节量子和经典光学应用中的光子的旋转轨道动力。然而，手性浅品相互作用具有极其弱的性质，难以控制和增强，不能进行可调或宽带。此外，平面超声纳米光电结构，以实现强大，宽带和可调性的紫外线纤维谱可见的可调性仍然难以难以捉摸。在这里，通过通过实验证明和理论上通过纳米超材料进行实验证明和理论上验证光谱可调，极大的和宽带的宽带的欺诈反应来解决这些重要问题。报道的全电介质和介质金属（混合）等级超材料的新设计允许通过大规模的纳米光电结构实现的最大和最广泛的手性kuhn的不对称因子。此外，可以通过改变其介质和等离子体螺旋小节之间的尺寸和比例来调谐所提出的自下而上的透镜型光学超材料的强圆形二色性。目前展示的超薄光学超材料预计将为纳米载体的显着增强和宽带手性浅点相互作用提供了大幅提升。

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  • 来源
    《Advanced Functional Materials》 |2021年第20期|2010329.1-2010329.8|共8页
  • 作者

    Kilic Ufuk; Hilfiker Matthew; Ruder Alexander; Feder Rene; Schubert Eva; Schubert Mathias; Argyropoulos Christos;

  • 作者单位

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA;

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA;

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA;

    Fraunhofer Inst Microstruct Mat & Syst IMWS Opt Mat & Technol D-06120 Halle Saale Germany;

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA;

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA|Linkoping Univ Dept Phys Chem & Biol S-58183 Linkoping Sweden|Leibniz Inst Polymer Res Dresden Inst Phys Chem & Polymer Phys D-01005 Dresden Germany;

    Univ Nebraska Dept Elect & Comp Engn Lincoln NE 68588 USA;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    chirality; helical nanostructures; metamaterials; plasmonics;

    机译：手性;螺旋纳米结构;超材料;血浆;

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