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首页> 外文期刊>Solid State Communications >Defect modes created by an elliptic defect in two-dimensional triangular photonic crystals
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Defect modes created by an elliptic defect in two-dimensional triangular photonic crystals

机译：二维三角光子晶体中由椭圆缺陷产生的缺陷模式

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摘要

This paper presents the polarization properties of defect modes created by an elliptic defect in a two-dimensional photonic crystal composed of circular cylinders with a triangular lattice. It has been observed that adjustment of the defects' symmetry results in the splitting of the dipole mode degeneracy, as predicted by group theory, and the magnitude of the frequency splitting increases as the aspect ratio of the elliptic defect increases. We also study the orientation effect of the elliptic defect on the defect modes. The results show that the frequency of the defect modes is independent of the orientation of the defect rods and the field distribution rotates by the same angle as the defects.
机译：本文介绍了由椭圆形缺陷在由具有三角形晶格的圆柱体组成的二维光子晶体中产生的缺陷模式的偏振特性。已经观察到，缺陷的对称性的调整导致偶极子模式简并性的分裂，如通过群论所预测的，并且频率分裂的幅度随着椭圆形缺陷的纵横比的增加而增加。我们还研究了椭圆形缺陷对缺陷模式的取向效应。结果表明，缺陷模式的频率与缺陷棒的方向无关，并且场分布旋转与缺陷相同的角度。

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