On the colour of wing scales in butterflies: iridescence and preferred orientation of single gyroid photonic crystals

Abstract

Lycaenid butterflies from the genera Callophrys, Cyanophrys and Thecla have evolved remarkable biophotonic gyroid nanostructures within their wing scales that have only recently been replicated by nanoscale additive manufacturing. These nanostructures selectively reflect parts of the visible spectrum to give their characteristic non-iridescent, matte-green… (More)
DOI: 10.1098/rsfs.2016.0154

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