title: Effective tunability and realistic estimates of group index in plasmonic metamaterials exhibiting electromagnetically induced transparency.
abstract: We study the phenomenon of the electromagnetically induced transparency in planar and stacked plasmonic metamaterials (MMs) using the finite integration time domain and finite element methods. For such structures, the dependence of the tunability of the inherent structural resonances on geometry design is clarified. We also analyze the performance of recently demonstrated MM designs in terms of the achievable group refractive index and losses, which are of great interest for slowing light applications.
authors.affiliation: Department of Microelectronics and Applied Physics, Royal Institute of Technology (KTH), Electrum 229, Kista, SE-164 40, Sweden. srsi@kth.se
authors.forename: Srinivasan
authors.initials: S
authors.lastname: Iyer
authors.forename: Sergei
authors.initials: S
authors.lastname: Popov
authors.forename: Ari T
authors.initials: AT
authors.lastname: Friberg