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Multiple-band absorber enabled by new type of metamaterial resonator formed by metallic split ring embedded with rectangle patch
Results in Physics ( IF 5.3 ) Pub Date : 2020-07-28 , DOI: 10.1016/j.rinp.2020.103251
Yuanhao He , Ben-Xin Wang , Pengcheng Lou , Huaxin Zhu

Multiple-band perfect light absorber using new type of metamaterial resonator consisted of a metallic split ring embedded with a rectangle patch is designed in this paper. Four terahertz absorption peaks with narrow line-widths, large absorption coefficients, and discrete resonance frequencies are realized. The combined effect of multiple localized modes of the designed metamaterial resonator results in the quad-band near-unity absorption. Further results reveal that parameter changes of the metamaterial resonator provide the ability to tune the number of absorption peaks. Both the device design and its physical mechanism are different from the traditional design strategies of the multiple-band absorption devices, and thus the suggested scheme can offer an alternative design idea for multiple-band light absorbers and could have large application prospects, including the selective thermal radiation, thermal detection, imaging, spectrum enhancement, stealth technology, solar energy, sensing, etc.



中文翻译:

新型超材料谐振器实现了多频带吸收器,该超材料谐振器由嵌入矩形贴片的金属开口环形成

本文设计了一种利用新型超材料谐振器的多频带完美光吸收器,该谐振器由嵌入矩形补丁的金属裂环组成。实现了四个太赫兹吸收峰,它们具有较窄的线宽,大的吸收系数和离散的共振频率。设计的超材料谐振器的多个局部模式的组合效应导致四频带近统一吸收。进一步的结果表明,超材料谐振器的参数变化提供了调节吸收峰数量的能力。器件设计及其物理机制与传统的多频带吸收器件设计策略不同,

更新日期:2020-07-28
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