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Adv Mater. 2013 Jan 25;25(4):612-7. doi: 10.1002/adma.201202788. Epub 2012 Oct 26.

On the origin of chirality in nanoplasmonic gyroid metamaterials.

Author information

1
Blackett Laboratory, Department of Physics, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.

Abstract

Metallic single gyroids, a new class of self-assembled nanoplasmonic metamaterials, are analyzed on the basis of a tri-helical metamaterial model. The physical mechanisms underlying the chiral optical behavior of the nanoplasmonic single gyroid are identified and it is shown that the optical chirality in this metallic structure is primarily determined by structural chirality and the connectivity of helices along the main cubic axes.

PMID:
23108851
DOI:
10.1002/adma.201202788

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