摘要
对光纤消逝场理论进行了详细分析,阐述了影响光纤消逝场传感器灵敏度的一些关键因素,并对几种常见的光纤消逝场传感光纤的优缺点进行了比较,主要包括圆柱形、D形、U形、锥形以及光子晶体光纤等结构的传感光纤。通过分析各种传感结构的光纤消逝场传感器的应用实例,归纳总结了提高光纤消逝场传感器传感灵敏度的一般方法,包括在传感光纤表面镀薄敏感膜或者金属膜、优化传感光纤结构、进行荧光标记以及用纳米粒子修饰等一系列措施。
The optical fiber evanescent field theory is analyzed in detail,and the key factors affec-ting the sensitivity of the sensor are discussed thoroughly.The merits and defects of several common evanescent field sensing fibers are compared,including the cylinder,D-shaped,U-shaped,tapered fibers,photonic crystal optical fibers and other sensing fibers.Through the analysis of the application examples of those sensing fibers,the general methods to improve the sensing sensitivity are summarized,such as coating the sensing fibers with a thin sensitive membrane or a metal film,optimizing the structure or decorating the sensing fibers with fluorescence or nano-particles.
出处
《微纳电子技术》
CAS
北大核心
2011年第6期376-383,390,共9页
Micronanoelectronic Technology
基金
中国科学院百人计划
北京市自然科学基金(102016)
中石油川庆钻探院资助项目(AJ-11-03)
关键词
光纤
光纤传感器
消逝场
传感结构
灵敏度
optical fiber
optical fiber sensor
evanescent field
sensing structure
sensitivity
