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题名:
Ultra-Broadband Terahertz Absorbers Based on 4 x 4 Cascaded Metal-Dielectric Pairs
作者: Guo, Yinghui1; Yan, Lianshan1; Pan, Wei1; Luo, Bin1; Luo, Xiangang2
刊名: PLASMONICS
出版日期: 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
文章类型: Article
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
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2435
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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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

Recommended Citation:
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.
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