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采用平面波展开加超元胞方法计算了二维正方格子磁性光子晶体的光子带隙结构 ,其中散射子的形状分别为长方形 ,正方形 ,六角形和圆形 .结果表明绝对带隙宽度和其宽高比远大于同种结构的非磁性光子晶体 .在此基础上 ,构成了混合型异质结 ,并计算了相应的传导模 ,发现了理想的界面传导模 ,而且当磁性散射子为长方形、圆形、六角形散射子时产生传导模都不需要晶格畸变 ,这也是磁性光子晶体异质结所具备的优点 .
The photonic bandgap structures of two-dimensional square lattice magnetic photonic crystals were calculated by the plane wave expansion method and the supercell method. The shapes of the scattering elements were rectangular, square, hexagonal and circular, respectively. The results show that the absolute band gap width and its width Which is much larger than that of the same type of non-magnetic photonic crystal.On this basis, a hybrid heterojunction is formed, and the corresponding conduction mode is calculated and an ideal interface conduction mode is found, and when the magnetic scattering sub-section has a rectangular shape, a circle Shape, hexagonal scattering generated when the conduction mode does not require lattice distortion, which is magnetic photonic crystal heterojunctions have the advantages.