Anomalous scaling laws of hyperbolic metamaterials in a tubular geometry

Anomalous scaling laws of hyperbolic metamaterials in a tubular geometry
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管状几何结构中双曲超材料的反常缩放定律

DOI:
10.1364/josab.35.000391
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发表时间:
2018-02
影响因子:
1.9
通讯作者:
Mei Yongfeng
Mei Yongfeng
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Tang Shiwei;Fang Yangfu;Zhou Lei;Liu Zhaowei;Mei Yongfeng

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双曲超材料(HMM)可以用于控制新兴的元器件中的光传播,从而产生各种功能(例如,超透镜和隐形装置)。在这里,我们提出了一种异国情调的管状腔,使用多层HMM,这与传统的材料与椭圆色散。在这种管状微腔中,计算揭示了它们具有反常的标度律,例如高阶谐振模式在较长的波长处振荡,并且谐振波长随着管壁厚度和直径的变化而保持其位置。这些发现可以帮助理解管状超材料,并可能激发有趣的光学实验和元器件。
Hyperbolic metamaterials (HMM) can be used to control light propagations in emerging meta-devices and thus lead to various functionalities (e.g., hyperlens and cloaking devices). Here we propose a kind of exotic tubular cavity by using multilayered HMM, which contrasts with traditional materials with elliptical dispersion. In such tubular microcavities, the calculations reveal that they have anomalous scaling laws, such as that the higher-order resonance mode oscillates at a longer wavelength and the resonant wavelengths hold their positions with changing the tube wall thickness and diameter. These findings can help the understanding of tubular metamaterials and could inspire interesting optical experiments and metadevices.
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