Studies of electromagnetically induced transparency in metamaterials

We have studied electromagnetically induced transparency (EIT) in metamaterials for various schemes corresponding to those in an atomic medium. We numerically calculate a symmetric dolmen scheme of metamaterials corresponding to a tripod model of EIT-based optical switching and illustrate plasmonic double dark resonances. Our study provides a fundamental understanding and useful guidelines in using metamaterials for plasmonic-based all-optical information processing. (C) 2010 Optical Society of AmericaWe acknowledge that this work was supported by the Center for Photon Information Processing of the Korean Ministry of Education, Science and Technology via KOSEF. We thank S. Zhang and X. Zhang of UC Berkeley for helpful discussions