一维光子晶体传感器在液体测量方面的应用研究

摘要

Based on the the transfer matrix method, the propagation of electromagnetic wave in the one-dimensional photonic crystal is deduced, and the dispersion relation of photonic crystals and the reflection characteristic curve are calculated, and the relationship between reflection characteristics and the structural parameters are analyzed. The variation and the reflection spectrum of defective one-dimensional photonic band gap are shown by computer simulation. The simulation and calculation of photonic crystal sensor are conducted for measurements of height and refractive index of liquid. This provides a theoretical basis for the practical application of defective one-dimensional photonic crystal sensor in liquid measurement.%运用传输矩阵法推导了电磁波在一维周期性光子晶体中的传输特性,给出了光子晶体的色散关系和反射特性曲线,分析了其反射特性与结构参数的关系.并且利用计算机数值模拟了缺陷型一维光子晶体的反射谱及带隙变化规律,给出了光子晶体传感器在液体的高度测量和折射率测量方面的模拟计算,为一维缺陷态光子晶体传感器在液位测量和液体折射率测量方面的实际应用奠定了理论基础.