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. 2015 Nov 18;5:16637. doi: 10.1038/srep16637

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Copyright © 2015, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a) The reflectivity from the naturel, the fabricated and the simulated wing scales with blue color. The displayed colors in the inset are from microscope images. (b) The reflectivity from the fabricated scales with green color. The sample names and their corresponding colors are shown in the inset. The red line with low reflectivity was taken from a ridge grating without PMMA/Air branches. Its color is dark red at 620 nm. For detailed explanations, see the text.