Correlated 3D Nanoscale Mapping and Simulation of Coupled Plasmonic Nanoparticles.

ABSTRACT: Electron tomography in combination with electron energy-loss spectroscopy (EELS) experiments and simulations was used to unravel the interplay between structure and plasmonic properties of a silver nanocuboid dimer. The precise 3D geometry of the particles fabricated by means of electron beam lithography was reconstructed through electron tomography, and the full three-dimensional information was used as an input for simulations of energy-loss spectra and plasmon resonance maps. Excellent agreement between experiment and theory was found throughout, bringing the comparison between EELS imaging and simulations to a quantitative and correlative level. In addition, interface mode patterns, normally masked by the projection nature of a transmission microscopy investigation, could be unambiguou

SUBMITTER: Haberfehlner G 

PROVIDER: S-EPMC4643356 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature