[PDF] Structural colors in nature: the role of regularity and irregularity in the structure. | Semantic Scholar (2024)

An effortless fabrication method to generate structural coloration based on microand nano-structures using 3d-laser writing technique, which avoids multiple complex fabrication steps and offers many advantages not available in coated multilayer systems.

High-speed printing-compatible localized compression pattern imprinting is shown to generate stable but easily erasable color patterns, which opens up the potential for durable and energy-efficient yet reusable and reconfigurable displays, wearables, or packaging and security labeling based on such polymeric film materials.

Inspired by the coloration mechanism of the moth wing, multilayer designs for the color plates that change their colors depending on the analyzing direction of polarization are considered.

The current state of the art in the structural-color patterning based on the colloidal arrays is reviewed, including common and different features between colloidal crystals and glasses and various methods to make them patterned from recent key contributions.

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The spectral reflectivities of P. blumei iridescent scales are determined numerically by using models of a butterfly scale microstructure and experimentally by using a microscale-reflectance spectrometer to accurately predict the shifts in spectral reflectivity observed experimentally.

A simple fabrication process including a conventional lithography technique in the semiconductor industry was used and the result showed that the optical scattering property was basically reproduced and affected by the structure of 100-300 nanometer scales in agreement with the anticipation.

Chemical tests show that the scales of insects are not composed of chitin, the principal component of the external parts of most insects, and it is interesting that bombardment of the scales with an intense electron beam for a matter of minutes does not appreciably affect the swelling properties of the scale in organic liquids.

The results of this study suggest that the microroughness of the upper wing surface may influence the perceived gloss of structurally colored wings.

It is shown that incorporation of a second layer of more transparent scales, above a layer of highly iridescent scales, leads to very strong diffraction, and it is suggested this effect acts to increase further the angle range over which incident light is reflected.

Using a simple model, it is shown that the combined action of interference and diffraction is essential for the structural colour of the Morpho butterfly.

Investigation of the colour, anatomy, nanostructure and biophysics of structurally coloured skin, ramphotheca and podotheca from 31 species of birds from 17 families in 10 orders from across Aves finds some yellow and orange skin colours are produced with a combination of structural and pigmentary mechanisms.

In some iridescent scales, the reflective elements are contained within the body of the scale and come in two basic forms, lattices that produce diffraction colors (analogous to those produced by opal), and stacks of laminae that produce thin‐film interference colors ( analogous by soap or oil films).

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