TY  - JOUR
A1  - Wiecha, Matthias M.
A1  - Daffaie, Shihab al-
A1  - Bogdanov, Andrey
A1  - Thomson, Mark David
A1  - Yilmazoglu, Oktay
A1  - Küppers, Franko
A1  - Soltani, Amin
A1  - Roskos, Hartmut
T1  - Direct near-field observation of surface plasmon polaritons on silver nanowires
T2  - ACS Omega
N2  - Surface plasmon polaritons on (silver) nanowires are promising components for future photonic technologies. Here, we study near-field patterns on silver nanowires with a scattering-type scanning near-field optical microscope that enables the direct mapping of surface waves. We analyze the spatial pattern of the plasmon signatures for different excitation geometries and polarization and observe a plasmon wave pattern that is canted relative to the nanowire axis, which we show is due to a superposition of two different plasmon modes, as supported by electromagnetic simulations including the influence of the substrate. These findings yield new insights into the excitation and propagation of plasmon polaritons for applications in nanoplasmonic devices.
KW  - Nanowires
KW  - Infrared light
KW  - Light
KW  - Plasmons Quantum mechanics
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/53545
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-535453
SN  - 2470-1343
N1  - This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
VL  - 4
IS  - 26
SP  - 21962
EP  - 21966
PB  - American Chemical Society (ACS)
CY  - Washington, D.C.
ER  -