Journal
ACS NANO
Volume 4, Issue 5, Pages 2649-2654Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn1002419
Keywords
nanorice; individual nanoparticles; dark-field scattering; multipolar plasmon resonances; oblique excitation
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Funding
- NSFC [10625418, 10874233]
- MOST [2006DFB02020, 2007CB936800, 2009CB930700]
- Robert A Welch Foundation [C-1222]
- Basque Government
- Spanish Ministry of Science and Innovation [FIS2007-66711-C01-01]
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We study the optical excitation of high-order surface plasmon resonance modes in individual Ag nanorice particles using dark-field scattering spectroscopy. We analyze the results by model calculations using the boundary element method. Symmetry breaking caused by oblique illumination makes the even order resonance modes observable in the optical spectrum. All the resonance peaks are found to redshift with increasing length of the particle.
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