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arXiv 1204.5397physics.opticsphysics.comp-ph
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孔形不规则性对光子晶体波导的影响

Effect of hole-shape irregularities on photonic crystal waveguides

Momchil Minkov, Vincenzo Savona

摘要:

利用布洛赫模展开法研究了不规则孔洞形状对光子晶体波导光谱和辐射损耗的影响。与正圆孔的偏差由半径波动幅度和相关角表征。发现决定无序效应大小的参数是空穴面积的标准差。因此,对于孔周围的半径波动的固定幅度,这些效果强烈地依赖于不规则形状的相关角。这一结果为进一步提高光子晶体结构的质量提供了思路。

英文摘要:

The effect of irregular hole shape on the spectrum and radiation losses of a photonic crystal waveguide is studied using Bloch-mode expansion. Deviations from a perfectly circular hole are characterized by a radius fluctuation amplitude and correlation angle. It is found that the parameter which determines the magnitude of the effect of disorder is the standard deviation of the hole areas. Hence, for a fixed amplitude of the radius fluctuation around the hole, those effects are strongly dependent on the correlation angle of the irregular shape. This result suggests routes to potentially improve the quality of photonic crystal structures.

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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