Journal article
Single-Mode to Multi-Mode Crossover in Thin-Load Polymethyl Methacrylate Plasmonic Waveguides
Publication Details
Authors: | Grossmann, M.; Thomaschewski, M.; Klick, A.; Goszczak, A.; Sobolewska, E.; Leißner, T.; Fiutowski, J.; Adam, J.; Rubahn, H.; Bauer, M. |
Publisher: | SPRINGER |
Publication year: | 2018 |
Journal: | Plasmonics |
Pages range : | 1441-1448 |
Volume number: | 13 |
Issue number: | 4 |
Start page: | 1441 |
End page: | 1448 |
Number of pages: | 8 |
ISSN: | 1557-1955 |
eISSN: | 1557-1963 |
DOI-Link der Erstveröffentlichung: |
Abstract
Mode character and mode dispersion of sub-60-nm-thick polymethyl methacrylate dielectric-loaded surface plasmon-polariton waveguides (DLSPPWs) are investigated using photoemission electron microscopy and finite element method simulations. Experiment and simulation show excellent agreement and allow identifying a crossover from single-mode to multi-mode waveguiding as a function of excitation wavelength lambda and DLSSPW cross section. Experiment and simulations yield, furthermore, indications for the formation of a surface plasmon-polariton cavity mode in the close vicinity of the waveguides.
Mode character and mode dispersion of sub-60-nm-thick polymethyl methacrylate dielectric-loaded surface plasmon-polariton waveguides (DLSPPWs) are investigated using photoemission electron microscopy and finite element method simulations. Experiment and simulation show excellent agreement and allow identifying a crossover from single-mode to multi-mode waveguiding as a function of excitation wavelength lambda and DLSSPW cross section. Experiment and simulations yield, furthermore, indications for the formation of a surface plasmon-polariton cavity mode in the close vicinity of the waveguides.
Keywords
Dielectric-loaded surface plasmon-polariton waveguides, DLSPPW, Mode dispersion, Photoemission electron microscopy, PMMA
