Contains the keyword negative-index metamaterials

Chatzakis I, Luo L, Wang J, Shen NH, Koschny T, Zhou J, et al. Reversible modulation and ultrafast dynamics of terahertz resonances in strongly photoexcited metamaterials. Phys Rev B. 2012;86:125110. Abstract

Huang ZX, Koschny T, Soukoulis CM. Theory of Pump-Probe Experiments of Metallic Metamaterials Coupled to a Gain Medium. Phys Rev Lett. 2012;108:187402. Abstract

Kurter C, Tassin P, Zhuravel AP, Zhang L, Koschny T, Ustinov AV, et al. Switching nonlinearity in a superconductor-enhanced metamaterial. Appl Phys Lett. 2012;100:121906. Abstract

Shen NH, Koschny T, Kafesaki M, Soukoulis CM. Optical metamaterials with different metals. Phys Rev B. 2012;85:075120. Abstract

Soukoulis CM, Wegener M. Past achievements and future challenges in the development of three-dimensional photonic metamaterials. Nat Photonics. 2011;5:523-30. Abstract

Li ZF, Caglayan H, Colak E, Zhou JF, Soukoulis CM, Ozbay E. Coupling effect between two adjacent chiral structure layers. Optics Express. 2010;18:5375-83. Abstract

Meinzer N, Ruther M, Linden S, Soukoulis CM, Khitrova G, Hendrickson J, et al. Arrays of Ag split-ring resonators coupled to InGaAs single-quantum-well gain. Opt Express. 2010;18:24140-51. Abstract

Fang A, Koschny T, Soukoulis CM. Lasing in metamaterial nanostructures. Journal of Optics. 2010;12:024013. Abstract

Fang A, Koschny T, Soukoulis CM. Self-consistent calculations of loss-compensated fishnet metamaterials. Physical Review B. 2010;82:121102. Abstract

Wegener M, Garcia-Pomar JL, Soukoulis CM, Meinzer N, Ruther M, Linden S. Toy model for plasmonic metamaterial resonances coupled to two-level system gain. Optics Express. 2008;16:19785-98. Abstract