Ultra-broadband dual-square ring metamaterial absorbers from visible to far-infrared region

被引：9
作者：
Chen, Dandan [1 ]
Xu, Bijun [1 ]
Xue, Xiaoju [1 ]
Wang, Xiaogang [1 ]
Hao, Ying [2 ]
机构：
[1] Zhejiang Univ Sci & Technol, Sch Sci, Hangzhou 310023, Peoples R China
[2] Hangzhou Dianzi Univ, Dept Phys, Hangzhou 310018, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2023年 / 530卷
基金：
中国国家自然科学基金;
关键词：
Ultra-broadband; Metamaterial; Visible to far-infrared region; METASURFACE; GENERATION; WAVE;
D O I：
10.1016/j.optcom.2022.129124
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This study proposes an ultra-wideband (UWB) metamaterial absorber based on dual-square ring (DSR) microstructures from the visible to the far-infrared region. The simulation results indicated that the absorber achieved more than 90% absorption in the wavelength range of 1200 nm to 11,000 nm. In addition, the absorption rate is greater than 80% in the wavelength range of 500-13,000 nm, achieving an ultra-broadband absorption with a bandwidth of over 12,000 nm. The designed UWB absorber has promising applications in thermal photovoltaic power generation, infrared imaging, photoelectric detection.
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页数：7
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