Large group delay in a microwave metamaterial analog of electromagnetically induced transparency

TitleLarge group delay in a microwave metamaterial analog of electromagnetically induced transparency
Publication TypeJournal Article
Year of Publication2010
AuthorsZhang L, Tassin P, Koschny T, Kurter C, Anlage SM, Soukoulis CM
Journal TitleApplied Physics Letters
Volume97
Pages241904
Date Published12/13
ISBN Number0003-6951
Accession NumberISI:000285481000016
Abstract

We report on our experimental work concerning a planar metamaterial exhibiting classical electromagnetically induced transparency (EIT). Using a structure with two mirrored split-ring resonators as the dark element and a cut wire as the radiative element, we demonstrate that an EIT-like resonance can be achieved without breaking the symmetry of the structure. The mirror symmetry of the metamaterial's structural element results in a selection rule inhibiting magnetic dipole radiation for the dark element, and the increased quality factor leads to low absorption (<10%) and large group index (of the order of 30). (C) 2010 American Institute of Physics. [doi:10.1063/1.3525925]

URL<Go to ISI>://000285481000016
DOI10.1063/1.3525925
Alternate JournalAppl Phys Lett