摘要
为了明晰生活在温带地区的蝴蝶翅膀的色彩产生机理,从而将这种生色机理应用在纺织品印染工艺上,解决目前高耗水、重污染的行业问题,文章选取了生活在温带的线蛱蝶和大紫蛱蝶两种蝴蝶,并分别在其翅膀上选定了各两个不同的颜色部位,利用扫描电子显微镜观察鳞片的微观结构,发现每种蝴蝶鳞片表面都具有脊脉、交叉肋等非光滑的周期结构,但其微尺寸有所区别。采用Ocean USB2000微型光谱仪分别对四个部位进行了多角度的光谱测试,发现只有大紫蛱蝶的紫色部位出现了波峰随角度偏移的现象,而这一偏移现象正是结构色的特征之一。随后针对这一紫色部位,采用乙醇替代空气作为鳞片的间质,发现鳞片色彩会改变,确认了大紫蛱蝶的紫色部位显色机理为光子晶体结构色。最后以大紫蛱蝶的紫色部位鳞片的微结构为基础模拟建立光子晶体模型,并利用平面波展开法计算了该结构的带隙,并分析了带隙与其色彩之间的对应关系。
This article aims to clarify the coloration mechanism of butterfly wings, and apply it on textiles dyeing and printing, to solve the problem of high water consumption and heavy pollution in textile industry. Two butterflies living in temperate zones were studied, which are Limenitidini and Sasakia charonda. SEM was used to observe the microstructure of two areas of each butterfly. It is found that there is non-smooth surface on wing scales, such as spinal veins, cross-rib, etc. Ocean USB2000 UV-vis-NIR micro spectrophotometers was used to perform multi-angle spectral tests on four areas, and it was found that only the purple part of Sasakia charonda showed the phenomenon of wave crest shifting with angle, which is characteristic of structural color. Then ethanol was used instead of air as mesenchyme of purple area, and the color changed, which verified the photonic crystal structural color mechanism. At last, a photonic crystal model was established based on the microstructure of the purple part of Sasakia charonda, and the band gap was calculated using the plane wave expansion method. Then the relationship between color and band gaps was analyzed.
作者
杨树
陈佳颖
YANG Shu;CHEN Jiaying(College of Textiles and Clothes,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《光学技术》
CAS
CSCD
北大核心
2021年第3期339-343,共5页
Optical Technique
基金
国家自然科学青年基金(51403078)
浙江省自然科学基金(E030059)
国家留学基金委(201508330017)。
