Modulation of Cathodoluminescence by Surface Plasmons in Silver Nanowires
Source abstract
Abstract
Abstract The waveguide modes in chemically‐grown silver nanowires on silicon nitride substrates are observed using spectrally‐ and spatially‐resolved cathodoluminescence (CL) excited by high‐energy electrons in a scanning electron microscope. The presence of a long‐range, travelling surface plasmon mode modulates the coupling efficiency of the incident electron energy into the nanowires, which is observed as oscillations in the measured CL with the point of excitation by the focused electron beam. The experimental data are modeled using the theory of surface plasmon polariton modes in cylindrical metal waveguides, enabling the complex mode wavenumbers and excitation strength of the long‐range surface plasmon mode to be extracted. The experiments yield insight into the energy transfer mechanisms between fast electrons and coherent oscillations in surface charge density in metal nanowires and the relative amplitudes of the radiative processes excited in the wire by the electron.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Gold and Silver Nanoparticles Synthesis and Applications · Nanomaterials and Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physics and Astronomy Monash University Clayton Victoria 3800 Australia
Monash Centre for Electron Microscopy Monash University Clayton Victoria 3800 Australia
School of Physics University of Melbourne Parkville, Victoria 3010 Australia
Delmic BV Kanaalweg 4 Delft 2628 EB The Netherlands
Division of Cell and Chemical Biology Leiden University Medical Centre Leiden University Leiden 2333 ZC The Netherlands
ARC Centre of Excellence in Exciton Science and School of Chemistry Monash University Clayton Victoria 3800 Australia
Department of Materials Science and Engineering Monash University Clayton Victoria 3800 Australia
Funding
Australian Research Council · Centre of Excellence in Exciton Science · Australian Academy of Technology and Engineering
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