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利用特征矩阵的方法,推导出TE波在一维光子晶体中光场的分布公式,研究了一维圆柱光子晶体波导内部各模式光的场分布特征。禁带中各模式的光场随传播深度的增加而迅速衰减。导带中各模式的光场不随传播深度的增加而衰减。这些特征的获得深化了对一维圆柱光子晶体波导中模式禁带和导带的形成的认识。
The distribution of TE field in one-dimensional photonic crystal is deduced by the method of eigenmatrix. The field distribution of each mode of one-dimensional cylindrical photonic crystal waveguide is studied. The light field of each mode in the forbidden band decays rapidly with the increase of the propagation depth. The light field of each mode in the conduction band does not decay with the increase of propagation depth. The acquisition of these features deepens the understanding of the formation of forbidden bands and conduction bands in one-dimensional cylindrical photonic crystal waveguides.