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Journal Article

A 3D optical metamaterial made by self-assembly

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Vignolini, S., Yufa, N. A., Cunha, P. S., Guldin, S., Rushkin, I., Stefik, M., et al. (2012). A 3D optical metamaterial made by self-assembly. Advanced Materials, 24(10), OP23-OP27. doi:10.1002/adma.201103610.

Cite as: https://hdl.handle.net/21.11116/0000-000B-FB20-6
Optical metamaterials have unusual optical characteristics that arise from their periodic nanostructure. Their manufacture requires the assembly of 3D architectures with structure control on the 10-nm length scale. Such a 3D optical metamaterial, based on the replication of a self-assembled block copolymer into gold, is demonstrated. The resulting gold replica has a feature size that is two orders of magnitude smaller than the wavelength of visible light. Its optical signature reveals an archetypal Pendry wire metamaterial with linear and circular dichroism. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.