Sensing self-assembled alkanethiols by differential transmission interrogation with terahertz metamaterials

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	Sensing self-assembled alkanethiols by differential transmission interrogation with terahertz metamaterials
	Wu, XJ ; Quan, BG ; Pan, XC ; Xu, XL ; Lu, XC ; Xia, XX ; Li, JJ ; Gu, CZ ; Wang, L
刊名	APPLIED OPTICS
	2013
卷号	52 期号:20 页码:4877
ISSN号	1559-128X
通讯作者	Xu, XL (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Surface-enhanced electromagnetic response in the resonant regions of split-ring resonators offers a sensitive way to probe the surface dipoles formed by alkanethiol molecules with a terahertz wave by a differential transmission (DT) interrogation method. The DT signal mainly comes from the interaction between alkanethiols and metamaterials by electron transfer and/or the variation of the dielectric constant. The Lorentz model is used to demonstrate the principle of DT interrogation theoretically, which suggests the variation of both frequency and damping of resonance can be captured cooperatively. This method has been employed to experimentally demonstrate the sensing feasibility for the chain length dependence of the alkanethiol molecules. Numerical simulations confirm that the enhancement is large at the gap and corner regions of this kind of metamaterials. (C) 2013 Optical Society of America
资助信息	National Natural Science Foundation of China [10834015, 51103175, 61077082]; National Basic Research Program of China [2009CB930502]; Natural Science Basic Research Plan in Shaanxi Province of China [2012KJXX-27]; CAS [KJCX2-EW-W02]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57434]
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	Wu, XJ,Quan, BG,Pan, XC,et al. Sensing self-assembled alkanethiols by differential transmission interrogation with terahertz metamaterials[J]. APPLIED OPTICS,2013,52(20):4877.
APA	Wu, XJ.,Quan, BG.,Pan, XC.,Xu, XL.,Lu, XC.,...&Wang, L.(2013).Sensing self-assembled alkanethiols by differential transmission interrogation with terahertz metamaterials.APPLIED OPTICS,52(20),4877.
MLA	Wu, XJ,et al."Sensing self-assembled alkanethiols by differential transmission interrogation with terahertz metamaterials".APPLIED OPTICS 52.20(2013):4877.