中国科学院长春光学精密机械与物理研究所

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	Ultrawide-band optically transparent antidiffraction metamaterial absorber with a Thiessen-polygon metal-mesh shielding layer
	N. T. Song, Q. Sun, S. Xu, D. Z. Shan, Y. Tang, X. X. Tian, N. X. Xu and J. S. Gao
	2023
发表期刊	Photonics Research
ISSN	2327-9125
卷号	11期号:7页码:1354-1363
摘要	Transparent absorbers, with a functional integration of broadband electromagnetic shielding, microwave camouflage, and optical transparency, have attracted increasing attention in the past decades. Metal mesh, an artificial, optically transparent, conducting material composed of periodic metallic gratings, is the optimal choice for the microwave shielding layer of transparent absorbers because of its excellent compatibility between high transparency and low resistance. However, the micrometer-level periodicity of metallic grating concentrates the diffraction of light, which degrades the imaging quality of cameras and sensors in common. In this study, we report on a generalized Thiessenpolygon-randomization method that prevents the concentration of the diffraction of light in periodic metallic grating and demonstrate an ultrawide-band optically transparent diffraction-immune metamaterial absorber. The absorber is constructed with a multilayer indium-tin-oxide-based metasurface and a Thiessen-polygon-randomized metal-mesh reflector. The lossy metasurface provides multimode absorption, whereas the Thiessen-polygon randomization prevents the concentration of the diffraction of light. The practical sample achieves a 10 dB absorptivity and shielding effectiveness over a range of 8-26.5 GHz, and the optical transparency is also preserved over the entire visible and near-infrared regions. The point spread function and field of view are both improved by using the antidiffraction absorber. Our study paves the way for the application of optically transparent electromagnetic devices, display, and optoelectronic integration in a more practical stage. & COPY; 2023 Chinese Laser Press
DOI	10.1364/prj.486613
URL	查看原文
收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67851
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	N. T. Song, Q. Sun, S. Xu, D. Z. Shan, Y. Tang, X. X. Tian, N. X. Xu and J. S. Gao. Ultrawide-band optically transparent antidiffraction metamaterial absorber with a Thiessen-polygon metal-mesh shielding layer[J]. Photonics Research,2023,11(7):1354-1363.
APA	N. T. Song, Q. Sun, S. Xu, D. Z. Shan, Y. Tang, X. X. Tian, N. X. Xu and J. S. Gao.(2023).Ultrawide-band optically transparent antidiffraction metamaterial absorber with a Thiessen-polygon metal-mesh shielding layer.Photonics Research,11(7),1354-1363.
MLA	N. T. Song, Q. Sun, S. Xu, D. Z. Shan, Y. Tang, X. X. Tian, N. X. Xu and J. S. Gao."Ultrawide-band optically transparent antidiffraction metamaterial absorber with a Thiessen-polygon metal-mesh shielding layer".Photonics Research 11.7(2023):1354-1363.

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