具有奇数通道滤波功能的光子晶体量子阱结构研究

选择适当的结构参数，用传输矩阵法计算模拟光子晶体(AB)m(CD)n(BA)m模型的透射谱，在归一化中心频率1.0（ωa/2πc）处，当光子晶体(CD)n的导带处于光子晶体(AB)m(BA)m的禁带中，且两者均以中心频率处为对称中心时，构成镜像对称的光子晶体量子阱结构。在光量子阱透射谱的中心频率处及对称的两侧，分布着具有规律的奇数局域共振峰，出现明显的量子化效应，透过峰数目和位置都可以通过光子晶体(CD)n的重复周期数n来调节，这一现象可用于设计可调性奇数通道滤波器。

Study on Odd-passage Filter Photonic Crystal Quantum-well Structure

When choosing proper structural parameters,the transmission spectra of the mirror symmetrical model of photonic crystal (AB)m(CD)n(BA)mis calculated by means of the transfer matrix method.When the transmission band of photonic crystal CD is completely inside the band gap of photonic crystal (AB)m(BA)m,both sharing the same central frequency as their symmetry centers,mirror symmetrical photonic quantum well is formed.At both sides of the central frequencies in the reduced units in the transmission spectra of the well,there are odd resonance-peaks,which symmetrically distributed and orderly localized,and form an obvious quantization effect for transmission-peak.The number and the location of the transmission peaks can be modulated by changing the number of period n of photonic crystal CD.This could be used for designing the adjustably odd-passage filters.