Ultra-broadband and high absorbance metamaterial absorber in long wavelength Infrared based on hybridization of embedded cavity modes

doi:10.1016/j.optcom.2019.04.080

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	Ultra-broadband and high absorbance metamaterial absorber in long wavelength Infrared based on hybridization of embedded cavity modes
	Y.Luo; Z.Z.Liang; D.J.Meng; J.Tao; J.Q.Liang; C.H.Chen
	2019
发表期刊	Optics Communications
ISSN	0030-4018
卷号	448 页码:1-9
摘要	We present a novel ultra-broadband, polarization-independent, and wide-angle metamaterial absorber whose metal-insulator-metal cavities are embedded into bulk insulator nanodisks. The hybridization of multiple embedded cavity modes generated by the combination of dielectric-loaded surface plasmon polaritons waveguide and cavity modes contributes to large bandwidth and high absorption in the long wavelength infrared (LWIR) region. The proposed structure exhibits more than 94% absorbance in the interval from 8 mu m to 16 mu m; and more than 95% absorbance over the whole LWIR band (8-14 mu m), which is superior than the initial MIM structure (absorption greater than 90% from 8.10-14.33 mu m) and similar kinds of metamaterial absorber based on noble metal. In addition, a nearly perfect absorbance (more than 99%) is obtained in the 11.22-12.46 mu m and 13.26-14.59 mu m wavebands. Moreover, results show that the resonant wavelength and operating bandwidth can be adjusted flexibly by varying related geometry parameters. Thus, the wavelength-selective metamaterial absorber is promising for thermal emitters, energy harvester and microbolometers.
关键词	Metamaterial absorbers,Long wavelength infrared,Embedded cavity modes,microbolometers,Optics
DOI	10.1016/j.optcom.2019.04.080
收录类别	SCI ; EI
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/181722/63151
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	Y.Luo,Z.Z.Liang,D.J.Meng,et al. Ultra-broadband and high absorbance metamaterial absorber in long wavelength Infrared based on hybridization of embedded cavity modes[J]. Optics Communications,2019,448:1-9.
APA	Y.Luo,Z.Z.Liang,D.J.Meng,J.Tao,J.Q.Liang,&C.H.Chen.(2019).Ultra-broadband and high absorbance metamaterial absorber in long wavelength Infrared based on hybridization of embedded cavity modes.Optics Communications,448,1-9.
MLA	Y.Luo,et al."Ultra-broadband and high absorbance metamaterial absorber in long wavelength Infrared based on hybridization of embedded cavity modes".Optics Communications 448(2019):1-9.

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