Study of a symmetrically structured SPR sensor and its dual-wavelength differential method

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光电测量技术实验室

	Study of a symmetrically structured SPR sensor and its dual-wavelength differential method
	Yang, Hai-ma 1,2,3; Ma, Cai-wen1 ; Wang, Jian-yu 2; Liu, Jin 4; Chen, Bao-xue 3
刊名	journal of modern optics
	2016
卷号	63 期号:2 页码:85-91
关键词	symmetric structure surface plasmon resonance planar waveguide Fermi function
ISSN号	0950-0340
通讯作者	yang, hm
产权排序	1
英文摘要	this study investigates a novel structure for surface plasmon resonance sensing and its dual-wavelength differential method. the surface plasmon wave is excited by a planar waveguide, which is prepared through the ion-exchange method. the distribution of refractive indices is fitted by the fermi function. the sensing structure is based on a symmetric structure with a metal layer, a measured medium, and another metal layer. the condition for refractive index matching changes with the thicknesses of test samples, thus the test range can be adjusted using this structure. given two appropriate wavelengths lambda(1) and lambda(2) for detection by the intensity method and an increase in the refractive index, the intensity variety at lambda(1) can be positive, whereas that at lambda(2) can be negative. when the refractive indices are determined based on differential values, sensitivity is improved. solutions with refractive index values ranging from 1.33 to 1.428 are detected in the experiments using the single-wavelength method and the dual-wavelength differential method. results show that the differential detection method enhances the adjustability and sensitivity of the spr sensor in combination with a symmetric structure.
学科主题	optics
WOS标题词	science & technology ; physical sciences
类目[WOS]	optics
研究领域[WOS]	optics
关键词[WOS]	optical wave-guide ; biosensors
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000367159300001
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/27340]
专题	西安光学精密机械研究所_光电测量技术实验室
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai, Peoples R China 4.Shanghai Univ Engn Sci, Coll Elect & Elect Engn, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hai-ma,Ma, Cai-wen,Wang, Jian-yu,et al. Study of a symmetrically structured SPR sensor and its dual-wavelength differential method[J]. journal of modern optics,2016,63(2):85-91.
APA	Yang, Hai-ma,Ma, Cai-wen,Wang, Jian-yu,Liu, Jin,&Chen, Bao-xue.(2016).Study of a symmetrically structured SPR sensor and its dual-wavelength differential method.journal of modern optics,63(2),85-91.
MLA	Yang, Hai-ma,et al."Study of a symmetrically structured SPR sensor and its dual-wavelength differential method".journal of modern optics 63.2(2016):85-91.