摘要
In this paper we investigate the near-field optical behavior of plasmon coupling in gold nanoparticle pairs. In particular, by performing series measurements through a fiber-collection mode near-field scanning optical microscope (NSOM), we directly observed the localized electromagnetic (EM) field distribution between two nanospheres is sensitively depended on the incident polarization and interparticle distance. The qualitative near-field observation and quantitative analysis facilitate more understanding of localized hot spots in surface-enhanced Raman scattering (SERS), and nano-applications in selectively controlling the spatial distribution of localized surface plasmon (SP) modes on a fabricated nanostructure by adjusting the polarization direction.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 165-172 |
頁數 | 8 |
期刊 | Optics Express |
卷 | 18 |
發行號 | 1 |
DOIs | |
出版狀態 | 已出版 - 4 1月 2010 |