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Gold helix photonic metamaterial as broadband circular polarizer

Gansel, Justyna K; Thiel, M; Rill, M. S; Decker, Manuel; Bade, Klaus; Saile, Volker; von Freymann, G; Linden, Stefan; Wegener, M


We investigated propagation of light through a uniaxial photonic metamaterial composed of three-dimensional gold helices arranged on a two-dimensional square lattice. These nanostructures are fabricated via an approach based on direct laser writing into a positive-tone photoresist followed by electrochemical deposition of gold. For propagation of light along the helix axis, the structure blocks the circular polarization with the same handedness as the helices, whereas it transmits the other,...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Science
DOI: 10.1126/science.1177031


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