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AbstractAbstract
[en] We present a two-step procedure to probe hotspots of plasmon-enhanced Raman scattering with carbon nanotubes (CNTs). Dielectrophoretic deposition places a small CNT bundle on top of a plasmonic Au nanodimer. After ‘pre-characterizing’ both the nanotubes and dimer structure, we subsequently use the tip of an atomic force microscope to push the bundle into the plasmonic hotspot located in the 25 nm wide dimer gap, characterize its location inside the gap, and observe the onset of plasmon-enhanced Raman scattering. Evidence for the activation of the CNT’s double-resonant D-mode by the near-field of the plasmonic hotspot is discussed. (paper)
Source
Available from http://dx.doi.org/10.1088/1361-6528/aaded9; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Nanotechnology (Print); ISSN 0957-4484;
; v. 29(46); [6 p.]

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