Moretti Luigi, Mocella Vito
Opt Express. 2007 Nov 12;15(23):15314-23. doi: 10.1364/oe.15.015314.
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.
我们从理论角度研究二维光子非周期晶体的光子特性。这些结构是通过按照图厄 - 摩尔斯序列产生的膨胀规则，从正方形排列中去除晶格点而得到的。通过态密度计算进行光子带隙分析。采用单散射模型和米氏散射研究带隙形成机制。电磁场分布可表示为准局域态。最后，提出了一种获得非周期光子结构的通用方法。
