21 August 2009 Oxide-based photonic crystals from biological templates
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Biological systems such as butterflies and beetles have developed highly elaborate photonic crystals to create their striking coloration. Especially, examples of the weevil and longhorn families (Curculionidae and Cerambycidae, respectively) possess a range of interesting three-dimensional photonic crystal structures operating at visible wavelengths, including non-close-packed lattices of cuticular spheres and diamond-based architectures. A low-temperature sol-gel bio-templating method was developed, to transform bio-polymeric photonic crystals into heat and photo-stable silica and titania inorganic structures. The fabricated oxide-based structures display good structural and optical properties.
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Jeremy W. Galusha, Jeremy W. Galusha, Matthew R. Jorgensen, Matthew R. Jorgensen, Lauren R. Richey, Lauren R. Richey, John S. Gardner, John S. Gardner, Michael H. Bartl, Michael H. Bartl, } "Oxide-based photonic crystals from biological templates", Proc. SPIE 7401, Biomimetics and Bioinspiration, 74010G (21 August 2009); doi: 10.1117/12.824181; https://doi.org/10.1117/12.824181

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