Two-dimensional photonic aperiodic crystals based on Thue-Morse sequence.
Two-dimensional photonic aperiodic crystals based on Thue-Morse sequence.
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DOI：
10.1364/oe.15.015314
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发表时间：
2007-11
期刊：
影响因子：
3.8
通讯作者：
L. Moretti;V. Mocella
中科院分区：
文献类型：
--
作者：
L. Moretti;V. Mocella
从理论上研究了二维光子非周期晶体的光子学特性。这些结构是通过从正方形排列中移除格点而获得的，遵循Thue-Morse序列中出现的膨胀规则。通过态密度计算对光子带隙进行了分析。采用单次散射模型和Mie散射模型研究了带隙的形成机理。电磁场分布可以用准局域态来表示。最后，提出了一种获得非周期光子晶体结构的一般方法。
We investigate from a theoretical point of view the photonic properties of a two dimensional photonic aperiodic crystal. These structures are obtained by removing the lattice points from a square arrangement, following the inflation rules emerging from the Thue-Morse sequence. The photonic bandgap analysis is performed by means of the density of states calculation. The mechanism of bandgap formation is investigated adopting the single scattering model, and the Mie scattering. The electromagnetic field distribution can be represented as quasi-localized states. Finally, a generalized method to obtain aperiodic photonic structures has been proposed.