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题名:
Engineering the dispersion of metamaterial surface for broadband infrared absorption
作者: Feng, Qin1,2; Pu, Mingbo1; Hu, Chenggang1; Luo, Xiangang1
刊名: OPTICS LETTERS
出版日期: 2012-06-01
卷号: 37, 期号:11, 页码:2133-2135
文章类型: Article
英文摘要: We propose a broadband infrared absorber by engineering the frequency dispersion of metamaterial surface (metasurface) to mimic an ideal absorbing sheet. With a thin layer of structured nichrome, a polarization-independent absorber with absorption larger than 97% is numerically demonstrated over a larger than one octave bandwidth. It is shown that the bandwidth enhancement is related with the transformation of the Drude model of free electron gas in metal film to the Lorentz oscillator model of a bound electron in the structured metallic surface. We believe that the concept of dispersion engineering may provide helpful guidance for the design of a broadband absorber. (c) 2012 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000305085000119
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2377
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.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China
2.SW Inst Phys, Chengdu 610041, Peoples R China

Recommended Citation:
Feng, Qin,Pu, Mingbo,Hu, Chenggang,et al. Engineering the dispersion of metamaterial surface for broadband infrared absorption[J]. OPTICS LETTERS,2012,37(11):2133-2135.
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