基于计算机软件的新型SPR传感器设计  

Design of surface plasmon resonance sensor based on computer software

作　　者：郑林江[1] 许元飞[2] 

机构地区：[1]成都信息工程大学信息中心,成都610207 [2]西安科技大学,西安710000

出　　处：《光学技术》2016年第5期478-480,共3页Optical Technique

基　　金：国家自然科学基金项目(61304259)

摘　　要：为了改进SPR传感器灵敏度低、稳定性差、测量范围窄等问题,基于光的衰减全反射理论设计了一种SPR传感装置。利用FDTD计算机软件分析得到:设计的结构分子层和金属薄膜之间的界面磁场强度得到极大地提高,测量精度有了显著的改进;很大一部分倏逝场能量集中在表面等离子共振区,倏逝波的强度非常强。In order to improve the problem of SPR sensor that sensitivity is low, poor stability is poor and measuring range is narrow, SPR sensing device is designed based on the theory of attenuated total reflection of light. Using the FDTD, the molecular structure layer and the interface between the metal film magnetic field strength is increased greatly. Measure precision significantly is improved. Large part of the evanescent field energy is concentrated in the surface plas- ma resonance region. The strength of the evanescent wave is very strong.

关 键 词：SPR传感器 FDTD 分子层 测量精度 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]