Journal
ACS NANO
Volume 3, Issue 3, Pages 637-642Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn800906c
Keywords
nanoparticle; polarization; nanoantenna; surface plasmon; enhancement
Categories
Funding
- National Natural Science Foundation of China [10625418]
- MOST [2006DFB02020, 2007CB936800, 2009CB930704]
- Israel Science Foundation [958/06]
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We investigate the light emission from dipolar emitters located within nanoparticle antennas. It is found that the enormous emission enhancement can reach nearly a million fold. For multinanoparticle antennas, the polarization of the emissions strongly depends on the geometry of the antennas, the emitted wavelengths, and the dielectric functions of surrounding media. It is shown that a polarization nanorotator, which modulates the emission polarization on the nanometer scale, can be readily realized by varying either the geometry or surrounding media of nanoparticle antennas.
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