Drawn metamaterials with plasmonic response at terahertz frequencies

Electromagnetic metamaterials attract much attention since they can be engineered to exhibit optical properties not found in nature. Their fabrication, however, is challenging, especially in volume. We introduce drawing as a means of fabricating metamaterials, thus demonstrating a terahertz metamaterial. We codraw polymethyl-methacrylate and indium, producing several meters of metamaterial with wire diameters down to similar to 10 mu m, and lattice constants of similar to 100 mu m. We experimentally characterize the transmission properties of different samples, observing high-pass filtering between 0.3-0.4 THz, in good agreement with simulations. (C) 2010 American Institute of Physics. [doi:10.1063/1.3428576]