期刊
OPTICS LETTERS
卷 36, 期 9, 页码 1542-1544出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.36.001542
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资金
- National Natural Science Foundation of China (NSFC) [10874134]
- Ministry of Education [708063]
We theoretically investigate the plasmon coupling in metallic nanorod dimers. A pronounced dip is found in the extinction spectrum due to plasmonic Fano resonance, which is induced by destructive interference between the bright dipole plasmon of a short nanorod and the dark quadrupole plasmon of a long nanorod. This Fano interference can also be explained as the coupling between the bright and dark modes both supported by the whole dimer. The Fano resonance can be tuned by adjusting the spatial or spectral separation between two nanorods in the dimer. (C) 2011 Optical Society of America
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