Since the slicing scheme in the TMM requires no periodicity along the propagating direction, we can apply this method to solve the transmission spectrum for hetero photonic crystals.

• 传输矩阵法的各个分割区块互不相同，故可处理非周期性之结构。因此我们可以此方法计算二维异质结构的光子晶体传输频谱。