M orpho蝴蝶结构显色是结构显色研究中最热门的分支之一,其显色原理主要在于物理光学作用。根据M orpho蝴蝶的表皮微结构,建立了计算模型;利用时域有限差分方法(fin ite d ifference tim e dom a in m ethodFDTD)对结构模型在自然光照...M orpho蝴蝶结构显色是结构显色研究中最热门的分支之一,其显色原理主要在于物理光学作用。根据M orpho蝴蝶的表皮微结构,建立了计算模型;利用时域有限差分方法(fin ite d ifference tim e dom a in m ethodFDTD)对结构模型在自然光照射下的结构显色特性进行计算,根据计算结果分析了M orpho蝴蝶的颜色之谜,揭示了其结构显色的原理。计算分析结果与观察结果完全吻合,说明研究方法具有可行性。展开更多
Morpho butterfly wings show brilliant blue color,which has a close relationship with the hierarchical micro/nano structures on the surface of scales.When liquids such as methanol,ethanol and isopropanol with different...Morpho butterfly wings show brilliant blue color,which has a close relationship with the hierarchical micro/nano structures on the surface of scales.When liquids such as methanol,ethanol and isopropanol with different refractive indexes drop onto the scales,the reflectance of wings would decrease.The main peaks of reflectance shift to the right and the scales turn to yel-low-green.After the liquids volatilizes completely,the scales revert to the original blue color.The typical micro/nano struc-tures of Morpho butterfly wing scales are modeled,and the reflectance variation in the course of dropping liquids is simulated.Furthermore,the principal component analysis(PCA) method is employed to analyze the experimental and simulation reflec-tance data,extract principal components and reduce dimensions.As a result,the curves mapping the reflectance variation are clearly shown in the coordinate system consisting of three principal components.The typical color variation of scales during the dropping process could be monitored,and different kinds of liquids could be obviously distinguished according to the dis-tributed regions of mapping points.This study provides guidance to environmental media detecting as well as data processing,and enhances the fabrication and application of the mimic Morpho butterfly wings micro/nano structures.展开更多
文摘M orpho蝴蝶结构显色是结构显色研究中最热门的分支之一,其显色原理主要在于物理光学作用。根据M orpho蝴蝶的表皮微结构,建立了计算模型;利用时域有限差分方法(fin ite d ifference tim e dom a in m ethodFDTD)对结构模型在自然光照射下的结构显色特性进行计算,根据计算结果分析了M orpho蝴蝶的颜色之谜,揭示了其结构显色的原理。计算分析结果与观察结果完全吻合,说明研究方法具有可行性。
基金supported by the National Key Basic Research Special Fund of China (Grant No.2009CB724204)National Natural Science Foundation of China (Grant Nos.90923019,50975106)
文摘Morpho butterfly wings show brilliant blue color,which has a close relationship with the hierarchical micro/nano structures on the surface of scales.When liquids such as methanol,ethanol and isopropanol with different refractive indexes drop onto the scales,the reflectance of wings would decrease.The main peaks of reflectance shift to the right and the scales turn to yel-low-green.After the liquids volatilizes completely,the scales revert to the original blue color.The typical micro/nano struc-tures of Morpho butterfly wing scales are modeled,and the reflectance variation in the course of dropping liquids is simulated.Furthermore,the principal component analysis(PCA) method is employed to analyze the experimental and simulation reflec-tance data,extract principal components and reduce dimensions.As a result,the curves mapping the reflectance variation are clearly shown in the coordinate system consisting of three principal components.The typical color variation of scales during the dropping process could be monitored,and different kinds of liquids could be obviously distinguished according to the dis-tributed regions of mapping points.This study provides guidance to environmental media detecting as well as data processing,and enhances the fabrication and application of the mimic Morpho butterfly wings micro/nano structures.
