Characterization of the iridescence-causing multilayer structure of the Ceroglossus suturalis beetle using bio-inspired optimization strategies
We investigate the iridescence exhibited by Ceroglossus suturalis beetles, which mostly live endemically in the southern end of South America. Two differently colored specimens have been studied. We observed and characterized the samples by different microscopy techniques, which revealed a multilaye...
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| Veröffentlicht in: | Optics express 2013-08, Vol.21 (16), p.19189-19201 |
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| container_title | Optics express |
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| creator | Luna, Ana Macías, Demetrio Skigin, Diana Inchaussandague, Marina Schinca, Daniel Gigli, Miriam Vial, Alexandre |
| description | We investigate the iridescence exhibited by Ceroglossus suturalis beetles, which mostly live endemically in the southern end of South America. Two differently colored specimens have been studied. We observed and characterized the samples by different microscopy techniques, which revealed a multilayer structure within their cuticle. Using measured reflectance spectra as input data, we applied heuristic optimization techniques to estimate the refractive index values of the constituent materials, to be introduced within the theoretical model. The color of the samples was calculated for different incidence angles, showing that multilayer interference is the mechanism responsible for the observed iridescence. |
| doi_str_mv | 10.1364/OE.21.019189 |
| format | Article |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Animals Biomimetics - methods Coleoptera - anatomy & histology Coleoptera - ultrastructure Color Engineering Sciences Optics Photonic Pigmentation Refractometry Spectrum Analysis |
| title | Characterization of the iridescence-causing multilayer structure of the Ceroglossus suturalis beetle using bio-inspired optimization strategies |
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