Large-visual-angle microstructure inspired from quantitative design of Morpho butterflies' lamellae deviation using the FDTD/PSO method.
Large-visual-angle microstructure inspired from quantitative design of Morpho butterflies' lamellae deviation using the FDTD/PSO method.
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DOI：
10.1364/ol.38.000169
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发表时间：
2013-01
期刊：
影响因子：
3.6
通讯作者：
Wanlin Wang;Wang Zhang;Weixin Chen;Jiajun Gu;Qinglei Liu;T. Deng;Di Zhang
中科院分区：
文献类型：
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作者：
Wanlin Wang;Wang Zhang;Weixin Chen;Jiajun Gu;Qinglei Liu;T. Deng;Di Zhang
通过时域有限差分（FDTD）/粒子群优化（PSO）分析研究了 Morpho 蝴蝶鳞片中树状结构的宽角度范围。使用FDTD方法，研究了大闪蝶树状结构中的不同参数，并分析了它们对角度依赖性的贡献。然后通过PSO方法通过定量设计片层偏差（Δy）来实现宽角度范围，片层偏差（Δy）是角度范围的关键参数。给出了大范围宽范围反射的场图，以确认宽角度范围。计算不同观察方向的三刺激值和相应的颜色坐标，以确认不同观察角度下的蓝色。 FDTD/PSO 方法实现的宽角度范围将有助于我们理解所涉及的科学原理以及设计人造光学材料。
The wide angular range of the treelike structure in Morpho butterfly scales was investigated by finite-difference time-domain (FDTD)/particle-swarm-optimization (PSO) analysis. Using the FDTD method, different parameters in the Morpho butterflies' treelike structure were studied and their contributions to the angular dependence were analyzed. Then a wide angular range was realized by the PSO method from quantitatively designing the lamellae deviation (Δy), which was a crucial parameter with angular range. The field map of the wide-range reflection in a large area was given to confirm the wide angular range. The tristimulus values and corresponding color coordinates for various viewing directions were calculated to confirm the blue color in different observation angles. The wide angular range realized by the FDTD/PSO method will assist us in understanding the scientific principles involved and also in designing artificial optical materials.