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Regarding the low-visibility issue of aerospace ground equipment in the visible light band, regulating the spectrum by using optical microstructures is one of the approaches to achieve stealth. Through reasonable structural design and optimization, the band can also be extended to infrared or even microwave, so as to realize multi-spectrum compatible stealth. Inspired by the periodic microstructures of butterfly wing scales, the inclined ridge-rib microstructures and nano-hole structures in butterfly wings are numerically characterized based on the spatial trigonometric function model, and the anti-reflective optical characteristics are analyzed by using the FDTD method. The results show that the two structures can provide solutions for the design of stealth metamaterials for aerospace equipment. Using a generalized model to digitize the structural characteristics is helpful for the subsequent efficient optimization and selection, so as to quickly obtain the optimal target optical performance.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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