一种改善太赫兹波吸收的具有榫卯结构的超材料吸收器

IF 6.3 2区 材料科学 Q2 CHEMISTRY, PHYSICAL
Qingmin Wang, Cheng Lv, Yang Liu, Zhiwei Gao, Tiecheng Wang
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引用次数: 0

摘要

据报道,超材料吸收剂具有优异的太赫兹吸收性能。在传统超材料结构的基础上,引入榫卯结构,提出了一种新的超材料减振器设计方法。仿真结果表明,超材料吸收体可以显著提高吸收,拓宽吸收带宽。在两种选择的示例超材料吸收材料中,有效吸收带宽从0 THz和0.58 THz增加到1.52 THz和1.58 THz。吸收率分别提高19%和4%。最大吸收接近于完全吸收。然后在此基础上,通过改变单元图中角的数量,设计了一种太赫兹宽带超材料吸收器。厚度仅为8.2 μm,在4.5 ~ 7.1 THz范围内,太赫兹吸收率超过90%。该超材料吸收器具有偏振不敏感和广角的特点,为太赫兹吸收器的研制提供了一种新的设计方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A metamaterial absorber with mortise structure for improving the terahertz wave absorption
Metamaterial absorbers have been reported for excellent absorption in terahertz. Based on the traditional metamaterial structure, we proposed a new design method for metamaterial absorber by introducing mortise structure. Simulations results demonstrated that the metamaterial absorbers can significantly increase the absorption and broaden the absorption bandwidth. The effective absorption bandwidth is increased from 0 THz and 0.58 THz to 1.52 THz and 1.58 THz in two selected example metamaterial absorbers. The absorption increased by 19% and 4%, respectively. And the maximum absorption is close to perfect absorption. Then a terahertz wideband metamaterial absorber is designed based on this structure by changing the number of corners in the cell pattern. The thickness is only 8.2 μm, the terahertz absorption exceeds 90% in 4.5-7.1 THz. The metamaterial absorber has the characteristics of polarization insensitive and wide angle, which provides a new design method for the development of terahertz absorbers.
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来源期刊
Journal of Alloys and Compounds
Journal of Alloys and Compounds 工程技术-材料科学:综合
CiteScore
11.10
自引率
14.50%
发文量
5146
审稿时长
67 days
期刊介绍: The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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