Journal
JOURNAL OF THE ROYAL SOCIETY INTERFACE
Volume 7, Issue 46, Pages 765-771Publisher
ROYAL SOC
DOI: 10.1098/rsif.2009.0352
Keywords
structural colour; butterflies; Lycaenidae; gyroid; photonic bandgap materials
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Funding
- AFOSR/EOARD [FA8655-08-1-3012]
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We present a comparison of the computer simulation data of gyroid nanostructures with optical measurements (reflectivity spectra and scattering diagrams) of ventral wing scales of the Green Hairstreak butterfly, Callophrys rubi. We demonstrate that the omnidirectional green colour arises from the gyroid cuticular structure grown in the domains of different orientation. We also show that this three-dimensional structure, operating as a biophotonic crystal, gives rise to various polarization effects. We briefly discuss the possible biological utility of the green coloration and polarization effects.
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