TY - JOUR
T1 - Single-mode to multi-mode crossover in thin-load polymethyl methacrylate plasmonic waveguides
AU - Großmann, Malte
AU - Thomaschewski, Martin
AU - Klick, Alwin
AU - Goszczak, Arkadiusz Jaroslaw
AU - Sobolewska, Elżbieta Karolina
AU - Leißner, Till
AU - Adam, Jost
AU - Fiutowski, Jacek
AU - Rubahn, Horst-Günter
AU - Bauer, Michael
PY - 2018
Y1 - 2018
N2 - 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 λ 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.
AB - 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 λ 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.
U2 - 10.1007/s11468-017-0649-3
DO - 10.1007/s11468-017-0649-3
M3 - Journal article
SN - 1557-1955
VL - 13
SP - 1441
EP - 1448
JO - Plasmonics
JF - Plasmonics
IS - 4
ER -