Large group delay in a microwave metamaterial analogue of electromagnetically induced transparency
Journal Article
·
· APPLIED PHYSICS LETTERS
OSTI ID:1025009
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
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