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HL: Fachverband Halbleiterphysik
HL 10: Plasmonics and Nanooptics: Light-Matter Interaction
HL 10.2: Vortrag
Montag, 7. März 2016, 11:00–11:15, S054
Coherent and periodic energy transfer between widely separated and cavity-coupled nanoantennas — 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 Center, TU Kaiserslautern, 67663 Kaiserslautern, Germany
We present a device that couples two widely separated (d≈2λ0) nanoantennas via an extended plasmon mode in a metallic cavity of elliptical shape. As predicted by finite-difference time-domain simulations a coherent back and forth transfer of energy between the antennas is observed in experiments. Samples were made out of atomically-flat single crystalline gold plates and the temporal dynamics of plasmonic excitations was investigated by time-resolved photoelectron emission microscopy. The device depicts an all-plasmonic analogue of the quantum mechanical Tavis-Cummings model and it is particularly suited to study the interaction of deterministically positioned quantum systems coupled to the incorporated nanoantennas.