Sensing properties of infrared nanostructured plasmonic crystals fabricated by electron beam lithography and argon ion milling

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	Sensing properties of infrared nanostructured plasmonic crystals fabricated by electron beam lithography and argon ion milling
	Quan, BG ; Liu, Z ; Li, L ; Sun, WJ ; Xu, XL ; Xia, XX ; Yang, HF ; Li, JJ ; Gu, CZ
刊名	JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
	2012
卷号	30 期号:6
关键词	METAMATERIALS RESONANCE ARRAYS
ISSN号	1071-1023
通讯作者	Quan, BG (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.
中文摘要	In this paper, the authors report on the fabrication, theory simulation, and optical characterization of X-shaped nanoscale plasmonic crystals (PCs) and their application in biosensors. X-shaped PCs with 30 nm feature line-widths and different intersection angles were fabricated by a combination of electron beam lithography and argon ion beam milling techniques. Both experimental measurement and finite-difference time-domain simulations were employed to study the transmission properties of PCs under two different incident light polarizations. With the reduction of the symmetry of the X-shaped PCs, the transmission spectra of PCs show a new peak at similar to 900 nm in the near-infrared region, and the optical experimental results were consistent with the simulated results. Plasmonic crystal-based biosensors were then prepared by self-assembly of octadecanethiol to the PCs followed by biotinylation and immobilization of streptavidin to the biosensor. The sensing properties of the PC-based biosensors with a 30 degrees intersection angle, which is enhanced by a localized surface plasmon resonance with the asymmetry of the PC, are superior to those with a larger intersection angle in biosensor application. The robust fabrication technique and the strategy for enhancing the sensitivity of the biosensor endow X-shaped PCs with a great competitive advantage over other candidates. VC 2012 American Vacuum Society. [http://dx.doi.org/10.1116/1.4767274]
收录类别	SCI
资助信息	National Basic Research Program of China [2009CB930502]; National Natural Science Foundation of China [51103175, 61001045, 91023041, 50825206, 10834012, 11174362]; Knowledge Innovation Project of CAS [KJCX2-EW-W02]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/52479]
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	Quan, BG,Liu, Z,Li, L,et al. Sensing properties of infrared nanostructured plasmonic crystals fabricated by electron beam lithography and argon ion milling[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B,2012,30(6).
APA	Quan, BG.,Liu, Z.,Li, L.,Sun, WJ.,Xu, XL.,...&Gu, CZ.(2012).Sensing properties of infrared nanostructured plasmonic crystals fabricated by electron beam lithography and argon ion milling.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B,30(6).
MLA	Quan, BG,et al."Sensing properties of infrared nanostructured plasmonic crystals fabricated by electron beam lithography and argon ion milling".JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 30.6(2012).