The presence of two defect layers in a one-dimensional photonic crystal which could be described numerically by the transfer matrix model becomes important when two defects modes might be controlled by the number of the middle layers. In this work, we compute the transmission spectra of a 1D photonic crystal with two graphene-based defect layers in the presence of an applied constant magnetic field. It is observed that an additional defect mode shows up at the lower edge of the photonic bandgap of the optical structure which could to be tuned by the Fermi energy, the intensity of the magnetic field and also the number of the layers between the defects. In addition, we investigated the effect of decreasing the number of middle layers on the transmission spectra of the photonic device.

当可以通过中间层的数量控制两个缺陷模式时，一维光子晶体中两个缺陷层的存在就变得很重要，该缺陷层可以用传递矩阵模型进行数值描述。在这项工作中，我们在存在恒定磁场的情况下，计算具有两个基于石墨烯的缺陷层的一维光子晶体的透射光谱。可以观察到，在光学结构的光子带隙的下边缘出现了另外的缺陷模式，可以通过费米能量，磁场强度以及缺陷之间的层数来调节。此外，我们研究了减少中间层数对光子器件透射光谱的影响。