Optical Properties of Greta oto Butterfly Wings: Relation of Iridescence with Photonic Properties.

This work presents an experimental and theoretical study about the optical properties of the wings of butterfly UV-Vis spectroscopy was used to obtain the optical response of the sample as function of the incident light angle. It was possible to observe a shift in the maximum of the reflectance spectra towards lower values of lambda when the angle of incident light increases. The theoretical modeling allows us to relate photonic behavior with the optical properties of the wings of butterfly In particular, photonic behavior could be associated with the iridescent phenomenon on the butterfly wings.

Quiroz HP ，Barrera-Patiño CP ，Rey-González RR ，Dussan A ... -  《JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY》

Photonic effects in natural nanostructures on Morpho cypris and Greta oto butterfly wings.

Photonic crystals are some of the more spectacular realizations that periodic arrays can change the behavior of electromagnetic waves. In nature, so-called structural colors appear in insects and even plants. Some species create beautiful color patterns as part of biological behavior such as reproduction or defense mechanisms as a form of biomimetics. The interaction between light and matter occurs at the surface, producing diffraction, interference and reflectance, and light transmission is possible under suitable conditions. In particular, there are two Colombian butterflies, Morpho cypris and Greta oto, that exhibit iridescence phenomena on their wings, and in this work, we relate these phenomena to the photonic effect. The experimental and theoretical approaches of the optical response visible region were studied to understand the underlying mechanism behind the light-matter interaction on the wings of these Colombian butterflies. Our results can guide the design of novel devices that use iridescence as angular filters or even for cosmetic purposes.

Barrera-Patiño CP ，Vollet-Filho JD ，Teixeira-Rosa RG ，Quiroz HP ，Dussan A ，Inada NM ，Bagnato VS ，Rey-González RR ... -  《Scientific Reports》

Comprehensive analysis of retroreflection in Papilio crino Fabricius, 1792 wings.

Sackey J ，Dompreh KA ，Maaza M 《-》

Spectral reflectance properties of iridescent pierid butterfly wings.

Wilts BD ，Pirih P ，Stavenga DG 《-》

Iridescence from photonic crystals and its suppression in butterfly scales.

Poladian L ，Wickham S ，Lee K ，Large MC ... -  《-》