Controlling THz and far-IR waves with chiral and bianisotropic metamaterials George Kenanakis, Eleftherios N. Economou, Costas M. Soukoulis and Maria Kafesaki EPJ Applied Metamaterials, 2 (2015) 15 Published online: 08 February 2016 DOI: 10.1051/epjam/2015019