A general method is proposed to describe the energy levels of the interface states in one-dimensional photonic crystal (PC) heterojunction ([(AB)m(CD)m]n) containing dispersive or non-dispersion materials. We found that the finite energy levels of the interface states for the finite configuration can be described totally by the dispersion relation of the PC with a periodic unit [(AB)m(CD)m]. It is further found that this method is also applicable for the case of defect modes. We believe our method can be used to guide the practical application.

中文翻译：

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描述光子晶体异质结中多个局域模式的通用方法

提出了一种描述一维光子晶体（PC）异质结界面态能级的通用方法([(一种乙)米(CD)米]n)含有分散或非分散材料。我们发现有限构型的界面态的有限能级可以完全由PC与周期单元的色散关系来描述[(一种乙)米(CD)米]. 进一步发现该方法也适用于缺陷模式的情况。我们相信我们的方法可以用来指导实际应用。