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arXiv 1002.2305physics.optics
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用于减反射膜的平面超材料

Planar Metamaterials for Antireflection Coating

H. -T. Chen, J. Zhou, J. F. O'Hara, F. Chen, A. K. Azad, A. J. Taylor

摘要:

我们提出了一种新的方法,利用平面超材料的电介质表面。它由一个开口环谐振器阵列和一个金属网组成,由一个薄的电介质间隔物隔开。该涂层显著地降低了反射率,并且在宽入射角范围和窄带宽内极大地增强了透射率。通过调整在超材料边界处反射和透射的波的幅度和相移来实现抗反射,从而导致反射中的相消干涉和透射中的相长干涉。涂层可以非常薄,并且对间隔物介电常数没有要求。

英文摘要:

We present a novel antireflection approach utilizing planar metamaterials on dielectric surfaces. It consists of a split-ring resonator array and a metal mesh separated by a thin dielectric spacer. The coating dramatically reduces the reflectance and greatly enhances the transmittance over a wide range of incidence angles and a narrow bandwidth. Antireflection is achieved by tailoring the magnitude and phase shifts of waves reflected and transmitted at metamaterial boundaries, resulting in a destructive interference in reflection and constructive interference in transmission. The coating can be very thin and there is no requirement for the spacer dielectric constant.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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