Near-infrared multi-narrowband absorber based on plasmonic nanopillar metamaterial
Near-infrared multi-narrowband absorber based on plasmonic nanopillar metamaterial
复制标题
基于等离子体纳米柱超材料的近红外多窄带吸收体
DOI：
10.1016/j.optcom.2019.124637
复制
发表时间：
2020-03
影响因子：
2.4
通讯作者：
xing huang
中科院分区：
文献类型：
--
作者：
Qingfang Zhong;Tao Wang;Xiaoyun Jiang;Le Cheng;Ruoqin Yan;xing huang
本文对一种由金纳米柱超材料构成的多窄带吸收体进行了数值设计与研究。全波模拟表明，在垂直入射情况下，该吸收体在近红外波段可实现五个明显的窄带吸收峰，最大吸收率高达99.3%，最低吸收率也在80%以上。同时，还研究了在±30°入射角范围内的偏振相关性。我们通过调整金纳米柱阵列的结构参数，展示了该吸收体的光谱可调性。多窄带吸收的物理机制可解释为电偶极和磁偶极极化激元诱导的类似垂直法布里 - 珀罗的间隙等离激元共振。与以往关于多波段吸收体的研究相比，我们仅利用具有单一图案的简单结构就实现了不少于五个近红外窄吸收带，这使其在吸收滤波和光谱传感领域具有巨大的应用潜力。
A multi-narrowband absorber composed of gold nanopillar metamaterial is numerically designed and investigated in this paper. Full-wave simulations indicate that five distinctive narrow-band absorption peaks with the maximum absorption rate up to 99.3% and the lowest above 80% can be achieved in the near-infrared regime at normal incidence. Polarization dependence over a incident angular range of ± 30° is also researched. We demonstrate the spectroscopic tunability of our absorber by adjusting the structural parameters of the gold nanopillar array. Physical mechanism of the multi-narrowband absorption is construed as the vertical Fabry-Perot-like gap plasmonic resonances induced by electric and magnetic dipolar polaritons. Compared to the previous researches on multi-band absorbers, we realize no less than five nearinfrared narrow absorption bands by utilizing just simple configuration with single pattern, which makes considerable application potential in the fields of absorption filtering and spectroscopic sensing.
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影响因子：
4.6
作者：
Kwon MS;Ku B;Kim Y
通讯作者：
Kim Y
窄带完美吸收体，适用于最大局部磁场和电场增强和传感应用
影响因子：
4.6
作者：
Yong Z;Zhang S;Gong C;He S
通讯作者：
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影响因子：
3.8
作者：
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通讯作者：
Y. Yoo;Young Joo Kim;Pham Van Tuong;J. Rhee;K. Kim;W. Jang;Y. H. Kim;H. Cheong;Youngpak Lee-Youngp
影响因子：
3
作者：
Ben-Xin Wang
通讯作者：
Ben-Xin Wang
影响因子：
41.2
作者：
Lim, Dong-Kwon;Jeon, Ki-Seok;Suh, Yung Doug
通讯作者：
Suh, Yung Doug