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Polarization-selective imaging of the enhanced local field at gold nanoparticle junctions
- Authors
- Kim, Deok-Soo; Kim, Zee Hwan
- Issue Date
- 1월-2008
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- NSOM; plasmons; SERS
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.52, no.1, pp.17 - 20
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 52
- Number
- 1
- Start Page
- 17
- End Page
- 20
- ISSN
- 0374-4884
- Abstract
- The electromagnetic gap-mode is believed to be the major cause of the colossal surface-enhanced Raman scattering (SERS) signals recently discovered. However, no direct spatial correlation among the local field and the morphology has been established thus far. Here, we demonstrate that scattering-type apertureless near-field scanning optical microscopy (ANSOM) can visualize the gap-mode formed between gold nanoparticles with a spatial resolution better than 10 nm.
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