1. Optical negative-index metamaterials
2. C.M. Soukoulis, M. Kafesaki, Weakly and strongly coupled optical metamaterials, Invited talk at the Nanometa 2009, The 2nd European Topical Meeting on Nanophotonics and Metamaterials, 5–8 January, Seefeld, Tirol, Austria, 2009.
3. Magnetic response of split-ring resonators in the far-infrared frequency regime
4. X. Zhang, Optical bulk metamaterials, Plenary talk at the Nanometa 2009, The 2nd European Topical Meeting on Nanophotonics and Metamaterials, 5–8 January, Seefeld, Tirol, Austria, 2009.
5. Three-dimensional optical metamaterial with a negative refractive index