Journal
OPTICS EXPRESS
Volume 18, Issue 13, Pages 13407-13417Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.013407
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Funding
- DOE Office of Basic Energy Sciences 'Light-Material Interactions in Energy Conversion' Energy Frontier Research Center [DE-SC0001293]
- Army Research Office
- Center for Science and Engineering of Materials, an NSF MRSEC
- National Science Foundation
- Kavli Nanoscience Institute at Caltech
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We demonstrate narrow transmission resonances at near-infrared wavelengths utilizing coupled asymmetric split-ring resonators (SRRs). By breaking the symmetry of the coupled SRR system, one can excite dark (subradiant) resonant modes that are not readily accessible to symmetric SRR structures. We also show that the quality factor of metamaterial resonant elements can be controlled by tailoring the degree of asymmetry. Changing the distance between asymmetric resonators changes the coupling strength and results in resonant frequency tuning due to resonance hybridization. (C) 2010 Optical Society of America
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