Wide-angle broadband absorber based on uniform-sized hyperbolic metamaterial

Wide-angle broadband absorber based on uniform-sized hyperbolic metamaterial
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基于均匀尺寸双曲超材料的广角宽带吸收体

DOI:
10.1364/ome.8.002484
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发表时间:
2018-08
影响因子:
2.8
通讯作者:
Sujuan Feng
Sujuan Feng
中科院分区:
材料科学3区
文献类型:
--
作者:
Yanlin Liao;Yan Zhao;Shan Wu;Sujuan Feng

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本文报道了一种用不同填充率的金属-介电对组成的等尺寸双曲超材料制备的红外波段宽带吸收材料。我们发现宽带吸收源于多个慢波模式。此外,可以通过增加或减少金属介电对来设计吸收带宽。此外,所提出的吸收剂的吸收性能保持良好的广角。这种宽频带吸收剂是一种很好的潜在应用,如检测和相位成像。
We report a broadband absorber in the infrared regime by using uniform-sized hyperbolic metamaterial composed of metal-dielectric pairs with different filling ratios. We found that the broadband absorption originated from the multiple slow-wave modes. Furthermore, the absorption bandwidth can be engineered by adding or reducing metal-dielectric pairs. In addition, the absorption performance of the proposed absorber retains well in wide angles. This broadband absorber is a good candidate for potential applications such as detection and phase imaging.
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