Abstract
We present a numerical study of a "nanocrown" plasmonic structure, consisting one main "planet" gold sphere and six satellite gold spheres. The nanocrown has a strong optical enhancement and high spatial density of enhanced hot-spots around the nanocluster, and can increase the intensity of surface-enhanced Raman scattering up to 1014 by means of the electric field enhancement. Moreover, the nanocluster shows three different modes of local-field enhancement (LFE), and electric field modulation by light incidence angle, which result in high controllability of resonance. This study shows the strong potential of the nanocrown in the field of biomolecular nanoplasmonic sensors and plasmonic optical trapping devices.
| Original language | English |
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| Pages | 889-891 |
| Number of pages | 3 |
| State | Published - 2008 |
| Event | 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States Duration: 12 Oct 2008 → 16 Oct 2008 |
Conference
| Conference | 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 |
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| Country/Territory | United States |
| City | San Diego, CA |
| Period | 12/10/08 → 16/10/08 |
Keywords
- Local-field enhancement
- Localized surface plasmon
- Nanocrown
- Optical trapping
- Surface-enhanced Raman spectroscopy (SERS)