期刊
NANO LETTERS
卷 12, 期 8, 页码 3967-3972出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl3011512
关键词
Gold nanoparticles; surface plasmon resonance; plasmon coupling; super- and subradiant modes; nanoparticle chains
类别
资金
- Robert A. Welch Foundation [C-1664]
- Office of Naval Research [N00014-10-1-0989]
- NSF [CHE-0955286]
- ACS Petroleum Research Fund [50191-DNI6]
- 3M Nontenured Faculty Grant
- NSF-IGERT in Nanophotonics
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0955286] Funding Source: National Science Foundation
We establish the concept of a plasmonic polymer, whose collective optical properties depend on the repeat unit. Experimental and theoretical analyses of the super- and sub-radiant plasmon response of plasmonic polymers comprising repeat units of single nanoparticles or dimers of gold nanoparticles show that (1) the redshift of the lowest energy coupled mode becomes minimal as the chain approaches the infinite chain limit at a length of similar to 10 particles, (2) the presence and energy of the modes are sensitive to the geometries of the constituents, that is, repeat unit, but (3) spatial disorder and nanoparticle heterogeneity have only small effects on the super-radiant mode.
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