Scattering-enhanced absorption and interference produce a golden wing color of the burnished brass moth, Diachrysia chrysitis
| Autor: | Vladimir Lazović, Mihailo D. Rabasović, Srećko Ćurčić, Vojislav Milosevic, Aleksandar J. Krmpot, Dejan V. Stojanović, Dejan Pantelić, Danica Pavlović, Svetlana Savić-Šević |
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| Rok vydání: | 2016 |
| Předmět: |
animal structures
Materials science Diachrysia chrysitis Color 02 engineering and technology Moths 01 natural sciences Models Biological 010309 optics Brass Optics Interference (communication) 0103 physical sciences Animals Scattering Radiation Wings Animal Absorption (electromagnetic radiation) Microscopy Wing biology Scattering business.industry 021001 nanoscience & nanotechnology biology.organism_classification Reflectivity visual_art visual_art.visual_art_medium Microscopy Electron Scanning 0210 nano-technology business Enhanced absorption |
| Zdroj: | Physical review. E. 95(3-1) |
| ISSN: | 2470-0053 |
| Popis: | Here we report how interference and scattering-enhanced absorption act together to produce the golden wing patches of the burnished brass moth. The key mechanism is scattering on rough internal surfaces of the wing scales, accompanied by a large increase of absorption in the UV-blue spectral range. Unscattered light interferes and efficiently reflects from the multilayer composed of the scales and the wing membranes. The resulting spectrum is remarkably similar to the spectrum of metallic gold. Subwavelength morphology and spectral and absorptive properties of the wings are described. Theories of subwavelength surface scattering and local intensity enhancement are used to quantitatively explain the observed reflectance spectrum. |
| Databáze: | OpenAIRE |
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