| Photonic structure in the wings of Papilio Bianor Ganesa |
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| 作者姓名： | QIN YouHua LIU Feng YIN HaiWei WANG YuLan LIU XiaoHan ZHAO Li |
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| 作者单位： | Surface Physics Laboratory and Department of Physics, Fudan University, Shanghai 200433, China |
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| 基金项目： | Supported by the Shanghai Natural Science Foundation (Grant No. 04JC14018)，the National Key Basic Research Special Foundation of China and the Program for Changjiang Scholars and Innovative Research Team in University |
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| 摘 要： | We conducted structural characterizations, reflection measurements, and theoretical simulations on the iridescent green of the wings of Papilio bianor ganesa. We found that the green iridescence origi- nated from a stack of about 9 periodic structure composed of chitin layers and air-spacer layers. This periodic structure gave rise to a high-reflection band in yellowish-green part of the visible spectrum under normal incidence. With increasing incident angle, all reflection peaks showed a blue shift in wavelength. Based on the structural characterizations, the theoretical simulations accurately predicted the shifts in spectral reflectivity which might be observed experimentally.
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| 关 键 词： | 结构颜色 蝴蝶 刻度 干涉波 |
| 收稿时间： | 2007-05-23 |
| 修稿时间： | 2007-07-10 |
Photonic structure in the wings of <Emphasis Type="Italic">Papilio bianor ganesa</Emphasis> |
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| QIN YouHua LIU Feng YIN HaiWei WANG YuLan LIU XiaoHan ZHAO Li.Photonic structure in the wings of Papilio Bianor Ganesa[J].Chinese Science Bulletin,2007,52(23):3183-3188. |
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| Authors: | Qin YouHua Liu Feng Yin HaiWei Wang YuLan Liu XiaoHan Zhao Li |
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| Institution: | (1) Surface Physics Laboratory and Department of Physics, Fudan University, Shanghai, 200433, China |
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| Abstract: | We conducted structural characterizations, reflection measurements, and theoretical simulations on the iridescent green of the wings of Papilio bianor ganesa. We found that the green iridescence origi- nated from a stack of about 9 periodic structure composed of chitin layers and air-spacer layers. This periodic structure gave rise to a high-reflection band in yellowish-green part of the visible spectrum under normal incidence. With increasing incident angle, all reflection peaks showed a blue shift in wavelength. Based on the structural characterizations, the theoretical simulations accurately predicted the shifts in spectral reflectivity which might be observed experimentally. |
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| Keywords: | structural color papilio butterfly multilayer interference scale |
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