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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。
Photonic crystals are ordered structural materials composed of two or more materials with different refractive indices arranged in space according to a certain period of order. The photonic crystals have repeating structural units of the order of light wavelength. Through the rational design of these structural units , Can regulate the optical properties of photonic crystals. In recent years, photonic crystals have not only been widely used in the field of drug release, optical switches and metal probes, but also provided new detection principles and methods for chemical and biological sensors. This paper summarizes the preparation methods of photonic crystals and the application of this technology in the field of chemical and biological sensors in recent years.