Journal
NANOSCALE
Volume 5, Issue 17, Pages 7861-7866Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr01292a
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Funding
- European Social Fund
- Ministry Of Science, Research and the Arts Baden-Wuerttemberg
- Wilhelm Schuler Foundation
- Baden-Wurttemberg Foundation
- German-Israeli Foundation for Scientific Research and Development
- Carl-Zeiss-Foundation
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
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Metallic nanocones are well-suited optical antennas for near-field microscopy and spectroscopy, exhibiting a number of different plasmonic modes. A major challenge in using nanocones for many applications is maximizing the signal at the tip while minimizing the background from the base. It is shown that nanocone plasmon resonance properties can be shifted over a wide range of wavelengths by variation of the substrate, material, size and shape, enabling potential control over specific modes and field distributions. The individual resonances are identified and studied by correlated single particle dark field scattering and scanning electron microscopy in combination with numerical simulations.
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