应用SPRI技术检测指纹上的化学品残留  

Application of SPRI technology in detecting of chemical residual in fingerprint

作　　者：吴逸川 姚曼文[1] 方湘怡[2] 

机构地区：[1]同济大学功能材料研究所,上海200092 [2]西安交通大学理学院,陕西西安710049

出　　处：《传感器与微系统》2015年第6期37-38,42,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(81371642)

摘　　要：介绍了表面等离子体共振成像(SPRI)的原理,应用自行搭建的SPRI系统采集指纹图像,并分析其中的化学物残留。在实验中,测量了粘有Ti O2颗粒的指纹和正常状态下的指纹的SPR吸收光谱,并进行比较分析。实验结果表明:指纹图像有较高的分辨率和对比度;通过对指纹图像进行SPR分析,获得其SPR图谱,能显著观察到其共振波长的变化,从而能实现对残留化学品的检测。The principles of surface plasmon resonance imaging（ SPRI）are introduced,and a home-made SPRI system is utilized to acquire image of fingerprint and analyze chemical residual in fingerprint. In this study,a fingerprint containing TiO2 residual and a fingerprint in normal state are measured for comparison. Experimental results demonstrate that this SPRI technology improves resolution and contrast of the fingerprint image;by SPR analysis on fingerprint image,obtain its SPR spectrum,wavelength change can be observed obviously,so as to realize chemical residual detecting.

关 键 词：表面等离子体成像 指纹识别 化学品残留痕量检测 

分 类 号：TN247[电子电信—物理电子学]