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.
© 2011 OSA
Original Manuscript: March 30, 2011
Revised Manuscript: May 4, 2011
Manuscript Accepted: May 5, 2011
Published: May 6, 2011
Vol. 6, Iss. 6 Virtual Journal for Biomedical Optics
Mark D. Turner, "Fabrication and characterization of three-dimensional biomimetic chiral composites," Opt. Express 19, 10001-10008 (2011)
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