基于纳米多孔薄膜光学干涉的光学传感器  

Optical Sensors Based on Optical Interference of Nanoporous Film

作　　者：王亚锋 杨倩[1] 苏彬[1] 

机构地区：[1]浙江大学化学系分析化学研究所,杭州310058

出　　处：《化学学报》2017年第11期1071-1081,共11页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.21335001;21575126);浙江省自然科学基金(No.LR14B050001)资助~~

摘　　要：光学传感器是一种利用光把介质与目标分子的相互作用转换为光信号的装置.光学干涉是光学传感器中常用的技术,具有无需标记、无破坏性、响应迅速等优点.在光学传感器中光的干涉主要源于从单层薄膜上下表面反射的光或者从多层薄膜各个界面处反射的光.由于纳米多孔薄膜具有较高的比表面积,将其应用于传感器中能够提高传感器的灵敏度、降低检测限.常见的薄膜类型主要有单层、双层、多层(光子晶体)等.本文综述了多孔硅、阳极氧化铝、二氧化钛、金属有机骨架等纳米多孔薄膜材料的光学干涉在传感器中的应用,并对其进行了展望.Optical sensors are devices that transform the interaction between medium and analyte to optical signal. Optical interference is a technique that has been widely applied in optical sensors, which is label-free, fast and non-invasive. Light reflected from the top and bottom surfaces of single layer film, or each interfaces of multilayer film in optical sensors leads to constructive and destructive fringes of the optical interference pattern. Nanoporous films with large surface-to-volume ratio are beneficial to improve the sensitivity and lower the limit of detection of the sensors, which is typically used in the form of single layer, double layer or multilayer（usually served as photonic crystal）. In this article, we introduce and review the applications of nanoporous films of silicon, anodic aluminum oxide, titanium dioxide and metal-organic framework in optical sensors based on the optical interference. A perspective of developments in this research field is also provided.

关 键 词：光学传感器 光学干涉 纳米多孔薄膜 光子晶体 

分 类 号：TH744.3[机械工程—光学工程] TP212[机械工程—仪器科学与技术]