Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 23: Plasmonics and Nanooptics: Light-Matter Interaction, Spectroscopy
O 23.19: Poster
Montag, 7. März 2016, 18:15–20:30, Poster E
Coherent energy transfer between widely separated nanoantennas coupled via an elliptic cavity — Martin Aeschlimann1, Tobias Brixner2, •Benjamin Frisch1, Bert Hecht3, Bernhard Huber2, Matthias Hensen4, Christian Kramer2, Enno Krauß3, Thomas Löber5, Walter Pfeiffer4, Martin Piecuch1, and Philip Thielen1 — 1Department of Physics and Research Center OPTIMAS, TU Kaiserslautern, 67663 Kaiserslautern, Germany — 2Department of Physical and Theoretical Chemistry, Würzburg University, 97074 Würzburg, Germany — 3Experimental Physics 5, Würzburg University, 97074 Würzburg, Germany — 4Faculty of Physics, Bielefeld University, 33615 Bielefeld, Germany — 5Nano- Structuring-Centre, TU Kaiserslautern, 67663 Kaiserslautern, Germany
We present experimental and theoretical results on a system that allows long-distance coupling between two plasmonic nanoantennas mediated by an extended SPP mode in an elliptic cavity. The system is the first to demonstrate a prearranged hybridization of two seperated LSPs and a propagating surface plasmon. It is prepared on atomically flat single crystalline gold flakes and temporal dynamics of plasmonic excitations are investigated by time-resolved photoelectron emission microscopy (PEEM). The observed coherent back and forth transfer of energy between the nanoantennas is well explained by a model of three coupled oscillators. Spectrally-resolved PEEM experiments support the demonstration of hybridization.