期刊
MATERIALS
卷 15, 期 15, 页码 -出版社
MDPI
DOI: 10.3390/ma15155411
关键词
metamaterial absorber; mid-infrared; multi-sized resonators; ultra-broadband
类别
资金
- Project of Science and Technology of Shaanxi [2021JM-395]
This study presents the design of an ultra-broadband mid-infrared metamaterial absorber based on multi-sized resonators, showing high absorptivity and wide bandwidth, offering an improved performance for devices in the field of infrared detection and radiation refrigeration.
Mid-infrared metamaterial absorbers have many applications in the field of infrared detection, infrared thermal energy utilization, radiation refrigeration, invisible camouflage, etc. In this study, we designed an ultra-broadband mid-infrared metamaterial absorber based on multi-sized resonators. The structure of the absorber consisted of a gold substrate and nine resonators. The simulated results showed that the absorptivity of the absorber was higher than 90% in the 8.33-15.09 mu m waveband with an average absorptivity of 95.17%. The energy distributions of the electric and magnetic fields were introduced to investigate the physics of broadband absorption. Moreover, we combined the multi-layer structure with the plane random arrangement structure to achieve a balance between thickness and width. Our study further illustrates the potential application of multi-sized resonators in metamaterial absorbers to realize high absorptivity and ultra-broadband to improve the performance of devices applied in infrared detection, radiation refrigeration, and other fields.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据