中文摘要：

光子晶体是由两种以上具有不同折光指数的材料在空间按照一定的周期顺序排列所形成的有序结构材料,它具有尺度为光波长量级的重复结构单元,通过对这些结构单元的合理设计,可以调控光子晶体的光学性质。近年来,光子晶体不仅在药物释放、光学开关、金属探针领域取得了广泛的应用,也为化学及生物传感器领域提供了新的检测原理和手段。本文概述了光子晶体的制备方法及近年来该技术在化学及生物传感器领域中的应用研究。

英文摘要：

Photonic crystals are periodical materials which are made by periodically arrangement of more than two materials with different reflective index. Photonic crystals have periodical and repeated unit structure with nanometer scale, and its optical properties can be tuned by reasonably designing of the structure units. Photonic crystals have been applied not only in clinical diagnosis, drug delivery, optical switches, ion probe, but also in biosensors and chemical sensors. Here the preparation methods and applications in sensors field of photonic crystals are summarized.