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Fabrication and characterization of three-dimensional biomimetic chiral composites

Turner, M.D., Schröder-Turk, G.E. and Gu, M. (2011) Fabrication and characterization of three-dimensional biomimetic chiral composites. Optics Express, 19 (10). pp. 10001-10008.

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Here we show the fabrication and characterization of a novel class of biomimetic photonic chiral composites inspired by a recent finding in butterfly wing-scales. These three-dimensional networks have cubic symmetry, are fully interconnected, have robust mechanical strength and possess chirality which can be controlled through the composition of multiple chiral networks, providing an excellent platform for developing novel chiral materials. Using direct laser writing we have fabricated different types of chiral composites that can be engineered to form novel photonic devices. We experimentally show strong circular dichroism and compare with numerical simulations to illustrate the high quality of these three-dimensional photonic structures.

Item Type: Journal Article
Journal or Publication Title: Optics Express
Page Range: pp. 10001-10008
Publisher: OSA Publishing
Copyright: © 2011 OSA
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