Plasmonic Metamaterial With Coupling Induced Transparency
  A plasmonic "molecule" consisting of a radiative element coupled with a sub-radiant (dark) element is theoretically investigated. The plasmonic "molecule" shows close resemblance to the electromagnetically induced transparency (EIT) in an atomic system. Because of its sub-wavelength dimension, this EIT-like "molecule" can be used as building block to construct a "slow light" plasmonic metamaterial. 
Shuang Zhang, Dentcho A Genov, Yuan Wang, Ming Liu and Xiang Zhang