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Journal Article

Real-space imaging of nanotip plasmons using electron energy loss spectroscopy


Irsen,  Stephan
Electron Microscopy and Analytics, Center of Advanced European Studies and Research (caesar), Max Planck Society;

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Schroeder, B., Weber, T., Yalunin, S. V., Kiel, T., Matyssek, C., Sivis, M., et al. (2015). Real-space imaging of nanotip plasmons using electron energy loss spectroscopy. Physical Review B, 92(8): 085411. doi:10.1103/PhysRevB.92.085411.

Cite as: https://hdl.handle.net/21.11116/0000-0009-792E-D
We report the spatial mapping of surface plasmons on conical gold nanotips by electron energy loss spectroscopy. We observe standing-wave patterns resulting from reflections of the fundamental surface-plasmon mode at the nanotip apex. The experimental results are in very good agreement with numerical calculations using the discontinuous Galerkin time-domain method and analytical computations based on a cylindrical mode expansion.