| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Resonant Modes of L-Shaped Gold Nanoparticles |
| YANG Jing, ZHANG Jia-Sen, WU Xiao-Fei, GONG Qi-Huang |
| State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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YANG Jing, ZHANG Jia-Sen, WU Xiao-Fei et al 2009 Chin. Phys. Lett. 26 067802 |
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Abstract We analyze the electric field modes excited in resonant L-shaped gold nanoparticles using a finite-difference time domain method. Compared to a single gold nanorod, both the odd and even modes of the L-shaped nanoparticles can be excited due to the symmetry breaking. The nanoparticles with equal and unequal arms have different dependence of field enhancement and mode on the incident polarization.
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| Keywords:
78.67.Bf
73.20.Mf
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Received: 19 February 2009
Published: 01 June 2009
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| PACS: |
78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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