Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region

	Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region
	Zhou, W. C.; K. W. Li; C. Song; P. Hao; M. B. Chi; M. X. Yu and Y. H. Wu
	2015
发表期刊	Optics Express
卷号	23 期号:11 页码:A413-A418
摘要	A polarization-independent and omnidirectional nearly perfect absorber in the visible region has been proposed. The absorber is two-layer structure consisting of a subwavelength metal grating layer embedded in the high refractive index and lossless dielectric layer on the metal substrate. Extraordinary optical absorption with absorption peaks of over 99% can be achieved over the whole visible region for both TM and TE polarization. This absorption is attributed to cavity mode (CM) resonance caused by the coupled surface plasmon polaritons (SPP). Through adjusting the grating thickness, the absorption peak can be tuned linearly, which is highly advantageous to design various absorbers. Furthermore, the absorbance retains ultra-high over a wide angular range of incidence for both TM and TE polarization. This nearly perfect absorber offers great potential in the refractive index (RI) sensors, integrated photodetectors, solar cells and so on. (C)2015 Optical Society of America
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55377
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhou, W. C.,K. W. Li,C. Song,et al. Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region[J]. Optics Express,2015,23(11):A413-A418.
APA	Zhou, W. C.,K. W. Li,C. Song,P. Hao,M. B. Chi,&M. X. Yu and Y. H. Wu.(2015).Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region.Optics Express,23(11),A413-A418.
MLA	Zhou, W. C.,et al."Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region".Optics Express 23.11(2015):A413-A418.

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