Tunable 3D extended self-assembled gold metamaterials with enhanced light transmission.

Salvatore, Stefano; Demetriadou, Angela; Vignolini, Silvia; Oh, Sang Soon; Wuestner, Sebastian; Yufa, Nataliya A; Stefik, Morgan; Wiesner, Ulrich et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

The optical properties of metamaterials made by block copolymer self-assembly are tuned by structural and environmental variations. The plasma frequency red-shifts with increasing lattice constant and blue-shifts as the network filling fraction increases. Infiltration with dielectric liquids leads also to a red-shift of the plasma edge. A 300 nm-thick slab of gyroid-structured gold has a remarkable transmission of 20%.

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