Multifractal Characterization of Butterfly Wings Scales |
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Authors: | Ştefan Ţălu Ilya A. Morozov Dinara Sobola Pavel Škarvada |
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Affiliation: | 1.The Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI),Cluj-Napoca,Romania;2.Institute of Continuous Media Mechanics UB RAS,Perm,Russia;3.Faculty of Electrical Engineering and Communication, Physics Department,Brno University of Technology,Brno,Czech Republic |
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Abstract: | A lot of insect families have physical structures created by evolution for coloration. These structures are a source of ideas for new bio-inspired materials. The aim of this study was to quantitatively characterize the micromorphology of butterfly wings scales using atomic force microscopy and multifractal analysis. Two types of butterflies, Euploea mulciber (“striped blue crow”) and Morpho didius (“giant blue morpho”), were studied. The three-dimensional (3D) surface texture of the butterfly wings scales was investigated focusing on two areas: where the perceived colors strongly depend on and where they do not depend on the viewing angle. The results highlight a correlation between the surface coloration and 3D surface microtexture of butterfly wings scales. |
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