Optical nano-woodpiles: large-area metallic photonic crystals and metamaterials.

ABSTRACT: Metallic woodpile photonic crystals and metamaterials operating across the visible spectrum are extremely difficult to construct over large areas, because of the intricate three-dimensional nanostructures and sub-50 nm features demanded. Previous routes use electron-beam lithography or direct laser writing but widespread application is restricted by their expense and low throughput. Scalable approaches including soft lithography, colloidal self-assembly, and interference holography, produce structures limited in feature size, material durability, or geometry. By multiply stacking gold nanowire flexible gratings, we demonstrate a scalable high-fidelity approach for fabricating flexible metallic woodpile photonic crystals, with features down to 10 nm produced in bulk and at low cost. Control

SUBMITTER: Ibbotson LA 

PROVIDER: S-EPMC4321162 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature