Chiral metamaterials with negative refractive index based on four “U” split ring resonators
A uniaxial chiral metamaterial is constructed by double-layered four 'U' split ring resonators mutually twisted by 90{sup o}. It shows a giant optical activity and circular dichroism. The retrieval results reveal that a negative refractive index is realized for circularly polarized waves due to the large chirality. The experimental results are in good agreement with the numerical results.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-07CH11358
- OSTI ID:
- 1023948
- Report Number(s):
- IS-J 7572; TRN: US1104761
- Journal Information:
- Applied Physics Letters, Vol. 97, Issue 8
- Country of Publication:
- United States
- Language:
- English
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