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

Journal Article · Mon Dec 13 00:00:00 EST 2010 · APPLIED PHYSICS LETTERS

OSTI ID:1025009

Zhang, Lei; Tassin, Philippe; Koschny, Thomas; Kurter, Cihan; Anlage, Steven M; Soukoulis, C M

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).

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-07CH11358
• OSTI ID: 1025009
• Report Number(s): IS-J 7588; TRN: US1104832
• Journal Information: APPLIED PHYSICS LETTERS, Vol. 97, Issue 26
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
MAGNETIC DIPOLES
MIRRORS
QUALITY FACTOR
RADIATIONS
RESONANCE
RESONATORS
SELECTION RULES
SYMMETRY