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8 May 2014 Micro-pixelation and color mixing in biological photonic structures (presentation video)
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Abstract
The world of insects displays myriad hues of coloration effects produced by elaborate nano-scale architectures built into wings and exoskeleton. For example, we have recently found many weevils possess photonic architectures with cubic lattices. In this talk, we will present high-resolution three-dimensional reconstructions of weevil photonic structures with diamond and gyroid lattices. Moreover, by reconstructing entire scales we found arrays of single-crystalline domains, each oriented such that only selected crystal faces are visible to an observer. This pixel-like arrangement is key to the angle-independent coloration typical of weevils—a strategy that could enable a new generation of coating technologies.
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Michael H. Bartl and Ramneet K. Nagi "Micro-pixelation and color mixing in biological photonic structures (presentation video)", Proc. SPIE 9055, Bioinspiration, Biomimetics, and Bioreplication 2014, 90550R (8 May 2014); https://doi.org/10.1117/12.2044626
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