灰蝶$\textit{Cicada orni}$（半翅目）中的二合一超疏水和抗反射纳米器件
A two-in-one superhydrophobic and anti-reflective nanodevice in the grey cicada $\textit{Cicada orni}$ (Hemiptera)
摘要：
在覆盖灰色昆虫$\textit{Cicada orni}$（半翅目）翅膀的纳米结构中鉴定出两个分离的功能水平。上层负责机翼的超疏水特性，而下层增强其抗反射行为。为了评估双功能性，对各种化学物质进行了广泛的润湿实验和光学测量。扫描电子显微镜成像用于识别纳米结构形态。数值光学模拟和分析润湿模型被用来证明这两个层次的纳米结构的作用。此外，复折射率的几丁质材料的翅膀，确定从测量。
英文摘要：
Two separated levels of functionality are identified in the nanostructure which covers the wings of the grey cicada $\textit{Cicada orni}$ (Hemiptera). The upper level is responsible for superhydrophobic character of the wing while the lower level enhances its anti-reflective behavior. Extensive wetting experiments with various chemical species and optical measurements were performed in order to assess the bi-functionality. Scanning electron microscopy imaging was used to identify the nanostructure morphology. Numerical optical simulations and analytical wetting models were used to prove the roles of both levels of the nanostructure. In addition, the complex refractive index of the chitinous material of the wing was determined from measurements.
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