基于强度调制的光纤SPR系统的研究  

Research on the Light Intensity-modulation Optic-fiber SPR System

作　　者：胡耀明[1] 梁大开[1] 张伟[1] 王健 

机构地区：[1]南京航空航天大学智能材料与结构航空科技重点实验室,江苏南京210016 [2]浙江省丽水市广播电视监测中心,浙江丽水323000

出　　处：《压电与声光》2009年第1期44-46,共3页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(60477031);江苏省自然科学基金资助项目(BK2004128)

摘　　要：光纤表面等离子体共振(SPR)传感器是一种将光纤纤芯作为激发SPR效应基体的新型传感器。阐述了SPR效应及其强度调制原理。设计出一套基于共振光强度调制技术的光纤表面等离子体传感器系统,通过Labview直观的图形化界面对共振信号进行采集。利用此系统针对不同折射率的溶液进行测试,得到光强与折射率关系。The optical-fiber sensor based on surface plasmon resonance （SPR） is a novel sensor in which the optical fiber core is used as the host to excite the surface plasmons resonance effect. The principles of SPR effect and the light intensity modulation were discussed in this paper. A SPR sensor system was designed based on the reso- nant light intensity modulation technique. The resonant signals were acquired through the visible interface of Lab- view. The system was used to test the liquid medium with different refractive index and the relationship between the light intensity and the refractive index was obtained.

关 键 词：光纤 表面等离子体共振(SPR) 强度调制 折射率 LABVIEW 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]