alexa Mimicking the colourful wing scale structure of the Papilio blumei butterfly.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Kolle M, SalgardCunha PM, Scherer MR, Huang F, Vukusic P,

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Abstract The brightest and most vivid colours in nature arise from the interaction of light with surfaces that exhibit periodic structure on the micro- and nanoscale. In the wings of butterflies, for example, a combination of multilayer interference, optical gratings, photonic crystals and other optical structures gives rise to complex colour mixing. Although the physics of structural colours is well understood, it remains a challenge to create artificial replicas of natural photonic structures. Here we use a combination of layer deposition techniques, including colloidal self-assembly, sputtering and atomic layer deposition, to fabricate photonic structures that mimic the colour mixing effect found on the wings of the Indonesian butterfly Papilio blumei. We also show that a conceptual variation to the natural structure leads to enhanced optical properties. Our approach offers improved efficiency, versatility and scalability compared with previous approaches. This article was published in Nat Nanotechnol and referenced in Journal of Nanomedicine & Nanotechnology

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