Abstract
利用平面波展开法(Plane Wave Expansion Method)分析了电磁波在二维周期性光子晶体中的传输特性，提出了采用光子晶体平面波展开法测定氯化钾浓度的新方案。并且利用计算机数值模拟了二维光子晶体的带隙变化规律，给出了光子晶体带隙随待测溶液浓度的变化规律和百分浓度测量方面的模拟计算，为二维光子晶体带隙法在液体百分浓度测量方面的实际应用奠定了理论基础。Based on the plane wave expansion method, the propagation of electromagnetic wave in the two- dimensional photonic crystal is analyzed and a new method to measure the concentration of po-tassium chloride using two-dimensional photonic crystal plane wave expansion method is proposed. The transformation law of defective two-dimensional photonic band gap is shown by computer simulation. The simulation calculation of concentration transformation law and percent concentration measurement of photonic band gap (PBG) along with solution under test are given. This provides a theoretical basis for the practical application of two-dimensional photonic crystal band gap method in liquid percent concentration measurement.
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