设计一个金属层-DBR-金属层的结构,研究两个相同光学Tamm态的耦合形成的耦合模式的特性.通过传输矩阵法,得出电磁波入射的透射谱.透射谱上有一对间距很小的孪生耦合透射峰.基于这对耦合模式可以实现可调双频窄带滤波器,其通带的位置和间距可以通过改变中间层的一维光子晶体的层数或者改变入射波的入射角度来调节.
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