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

Autor:	Zhang, Lei, Tassin, Philippe, Koschny, Thomas, Kurter, Cihan, Anlage, Steven M., Soukoulis, C. M.
Rok vydání:	2010
Předmět:	Condensed Matter - Materials Science Physics - Optics
Zdroj:	Appl. Phys. Lett. 97, 241904 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3525925
Popis:	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). Comment: 4 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1010.2976 Zobrazit plný text záznamu View this record from Arxiv