Large group delay in a microwave metamaterial analog of electromagnetically induced transparency
Artikel i vetenskaplig tidskrift, 2010

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).

electromagnetically induced transparency

metamaterials

slow light

Författare

Lei Zhang

Philippe Tassin

Chalmers, Teknisk fysik, Kondenserade materiens teori

Thomas Koschny

Cihan Kurter

Steven M. Anlage

Costas M. Soukoulis

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 97 241904-

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Atom- och molekylfysik och optik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik

DOI

10.1063/1.3525925