Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs

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	Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs
	Guo, Yinghui 1; Yan, Lianshan 1; Pan, Wei 1; Luo, Bin 1; Luo, Xiangang 2
刊名	PLASMONICS
	2014-08-01
卷号	9 期号:4 页码:951-957
关键词	Metamaterial absorbers Terahertz absorbers Finite-difference time-domain method Frequency detection
英文摘要	We present an ultra-broadband metamaterial absorber in the terahertz regime based on the proposed 4 x 4 cascaded metal-dielectric pairs, which would help to reduce the demand for fabrication precision. The generation mechanism of electromagnetic resonances and the formation process of the ultra-broadband absorption were investigated by finite-difference time-domain (FDTD) method. Numerical results showed that absorptivity of similar to 92 % was obtained between 3.2 and 11.8 THz using the 4 x 4 structure. Such absorber was one of potential candidates for rough terahertz frequency estimator with an average detection resolution of 0.56 THz within a 9-THz range, which could be a supplement to the active terahertz spectrum analyzers with high resolution but limited measurement range (similar to 1 THz).
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]	METAMATERIAL ABSORBER ; ABSORPTION ; REFRACTION ; FREQUENCY
收录类别	SCI
语种	英语
WOS记录号	WOS:000341423800027
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/2435]
专题	光电技术研究所_光电技术研究所被WoS收录文章
作者单位	1.Southwest Jiaotong Univ, Sch Informat Sci & Technol, Ctr Informat Photon & Commun, Chengdu 610031, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610029, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yinghui,Yan, Lianshan,Pan, Wei,et al. Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs[J]. PLASMONICS,2014,9(4):951-957.
APA	Guo, Yinghui,Yan, Lianshan,Pan, Wei,Luo, Bin,&Luo, Xiangang.(2014).Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs.PLASMONICS,9(4),951-957.
MLA	Guo, Yinghui,et al."Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs".PLASMONICS 9.4(2014):951-957.