Polarization-dependent terahertz metamaterial absorber with high absorption in two orthogonal directions

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	Polarization-dependent terahertz metamaterial absorber with high absorption in two orthogonal directions
	Hu, FR ; Zou, TB ; Quan, BG ; Xu, XL ; Bo, SH ; Chen, T ; Wang, L ; Gu, CZ ; Li, JJ
刊名	OPTICS COMMUNICATIONS
	2014
卷号	332 页码:321
关键词	Metamaterial absorber Terahertz (THz) spectroscopy High absorption Polarization-dependent Orthogonal direction
ISSN号	0030-4018
通讯作者	Hu, FR (reprint author), Guilin Univ Elect Technol, Coll Elect Engn & Automatizat, Guilin 541004, Peoples R China.
中文摘要	We fabricated a polarization-dependent terahertz (THz) metamaterial absorber consisted of a metal film, a dielectric spacer and a metal pattern layer. The measured absorptivity for x-polarized wave is about 0.9 at 1.42 THz, and that for y-polarized wave is about 0.87 at 2.15 THz. The full width at half maximum (FWHM) of peaks at 1.42 THz and 2.15 THz are about 0.23 THz and 0.38 THz, respectively. The experimental results are in good agreement with the numerical simulation. In addition, the parameters related to the absorption are presented for deeply understanding the absorption mechanism. Most importantly, these two absorption peaks can be tuned respectively by simply changing the length in x and y directions. Our results suggest potential applications based on metamaterial absorber, such as THz polarization imaging, selective spectral detection, THz sensing and polarization multiplexing. (C) 2014 Elsevier B.V. All rights reserved.
资助信息	National Natural Science Foundation of China [61265005, 61077082, 61101054, 11374240, 51103175]; Natural Basic Research Program of China [2009CB930502]; foundation from Guangxi Experiment Center of Information Science Guilin University of Electronic Technology [20130101]; Knowledge Innovation Project of CAS [KJCX2-EW-W02]; Key Lab of Guangxi automation test technology and instrument [YQ14114]; innovation project of Guangxi Graduate Education [YCSZ2014141]; program for innovation research team of Guilin University of Electronic Technology
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59410]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Hu, FR,Zou, TB,Quan, BG,et al. Polarization-dependent terahertz metamaterial absorber with high absorption in two orthogonal directions[J]. OPTICS COMMUNICATIONS,2014,332:321.
APA	Hu, FR.,Zou, TB.,Quan, BG.,Xu, XL.,Bo, SH.,...&Li, JJ.(2014).Polarization-dependent terahertz metamaterial absorber with high absorption in two orthogonal directions.OPTICS COMMUNICATIONS,332,321.
MLA	Hu, FR,et al."Polarization-dependent terahertz metamaterial absorber with high absorption in two orthogonal directions".OPTICS COMMUNICATIONS 332(2014):321.