Journal
NANO LETTERS
Volume 11, Issue 4, Pages 1685-1689Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl200197j
Keywords
Metamaterials; electromagnetically induced transparency; plasmons; plasmon hybridization; Fano resonances; strong coupling
Categories
Funding
- NSF [ECCS-0954790]
- ONR
- Massachusetts Life Science Center
- NSF Engineering Research Center [EEC-0812056]
- Boston University Photonics Center
- Army Research Laboratory
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We introduce an approach enabling construction of a scalable metamaterial media supporting multispectral plasmon induced transparency. The composite multilayered media consist of coupled meta-atoms with radiant and sub-radiant hybridized plasmonic modes interacting through the structural asymmetry. A perturbative model incorporating hybridization and mode coupling is introduced to explain the observed novel spectral features. The proposed scheme is demonstrated experimentally by developing a lift-off-free fabrication scheme that can automatically register multiple metamaterial layers in the transverse plane. This metamaterial which can simultaneously enhance nonlinear processes at multiple frequency domains could open up new possibilities in optical information processing.
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