Slow-light plasmonic metamaterial based on dressed-state analog of electromagnetically-induced transparency

摘要

We consider a simple configuration for realizing one-dimensional slow-lightmetamaterials with large bandwidth-delay products using stub-shaped Fabry-Perotresonators as building blocks. Each metaatom gives rise to large group indicesdue to a classical analog of the dressed-state picture ofelectromagnetically-induced transparency. By connecting up to eight metaatoms,we find bandwidth-delay products over unity and group indices approaching 100.Our approach is quite general and can be applied to any type of Fabry-Perotresonators and tuned to different operating wavelengths.