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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Optical transmission spectra of two-dimensional quasiperiodic photonic crystals based on Penrose-tiling and octagonal-tiling systems
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Optical transmission spectra of two-dimensional quasiperiodic photonic crystals based on Penrose-tiling and octagonal-tiling systems

机译：基于彭罗斯-平铺和八边形-平铺系统的二维准周期性光子晶体的光学透射光谱

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摘要

We measured and calculated optical transmission spectra of two-dimensional quasiperiodic photonic crystals based on 5- and 8-fold symmetric patterns (Penrose and octagonal patterns). In our photonic crystals, dielectric cylindrical rods stood perpendicular to a basal plane on vertices of tiles in the patterns in air. in the TM mode, where electric fields of incident light are parallel to the rods, we found an isotropic photonic band gap even when the dielectric constant is as small as 2.4. Besides, we observed several dips depending on the incident direction of the light, which may be due to long-range multiple scattering.
机译：我们基于5倍和8倍对称图案（Penrose和八边形图案）测量并计算了二维准周期性光子晶体的光学透射光谱。在我们的光子晶体中，圆柱状电介质棒垂直于空气中图案中瓷砖顶点的基本平面。在TM模式下，入射光的电场与棒平行，即使介电常数小到2.4，我们也发现了各向同性的光子带隙。此外，根据光的入射方向，我们观察到了几次下降，这可能是由于远距离多次散射所致。

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