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Transmission enhancement and suppression by subwavelength hole arrays in polaritonic films

机译:偏光膜中亚波长孔阵列的传输增强和抑制

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We report that polaritonic thin films with a periodic array of subwavelength holes allow near-perfect transmission in the polariton gap where homogeneous films completely suppress transmission. We find that both propagating modes inside the subwavelength holes and surface resonances on the film interfaces play a crucial role in the transmission behavior. In the frequency range where both occur simultaneously, they interfere destructively and completely suppress transmission. When both mechanisms are spectrally separated, each individually results in enhanced transmission.
机译:我们报道了具有周期性阵列的偏光性薄膜,允许近乎完美的差异在均匀薄膜完全抑制变速器中的偏振片间隙中。 我们发现,在胶片接口上的亚波长孔和表面谐振中的传播模式都在传输行为中发挥着至关重要的作用。 在两者同时发生的频率范围内,它们干扰破坏性和完全抑制传输。 当两个机制被光谱分离时,每个机制单独地导致增强的传输。

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