Polarization-dependent broadband absorber based on composite metamaterials in the long-wavelength infrared range

doi:10.1364/OE.435579

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	Polarization-dependent broadband absorber based on composite metamaterials in the long-wavelength infrared range
	H. Yu; D. Meng; Z. Liang; H. Xu; Z. Qin; X. Su; D. R. Smith and Y. Liu
刊名	Optics Express
	2021
卷号	29 期号:22 页码:36111-36120
ISSN号	10944087
DOI	10.1364/OE.435579
英文摘要	Capturing polarization information has long been an important topic in the field of detection. In this study, two polarization-dependent broadband absorbers based on a composite metamaterial structure were designed and numerically investigated. Unlike in conventional metamaterial absorbers, the bottom metallic film is functionalized to achieve a polarization response or broadband absorption. The simulation results show that the type I absorber exhibits TM polarization-dependent broadband absorption (absorptivity80%) from 8.37 m to 12.12 m. In contrast, the type II absorber presents TE polarization-dependent broadband absorption (absorptivity80%) from 8.23 m to 11.93 m. These devices are extremely sensitive to the change of polarization angle. The absorptivity changes monotonically with an increase of the polarization angle, but it is insensitive to oblique incidence. This design paves the way for realizing broadband polarization-dependent absorption via a simple configuration. It has bright prospects in thermal detection applications and imaging fields. 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65540]
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	H. Yu,D. Meng,Z. Liang,et al. Polarization-dependent broadband absorber based on composite metamaterials in the long-wavelength infrared range[J]. Optics Express,2021,29(22):36111-36120.
APA	H. Yu.,D. Meng.,Z. Liang.,H. Xu.,Z. Qin.,...&D. R. Smith and Y. Liu.(2021).Polarization-dependent broadband absorber based on composite metamaterials in the long-wavelength infrared range.Optics Express,29(22),36111-36120.
MLA	H. Yu,et al."Polarization-dependent broadband absorber based on composite metamaterials in the long-wavelength infrared range".Optics Express 29.22(2021):36111-36120.