Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 29: Nanostructures, Nanostructuring and Nanosized Soft Matter I
CPP 29.3: Vortrag
Dienstag, 13. März 2018, 11:45–12:00, C 230
Systematic investigation of the coherent light coupling in various nanocavity geometries — •Fabian R. Goßler1,2, Max J. Schnepf1, and Tobias A.F. König1,2 — 1Institute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden — 2Cluster of Excellence Centre for Advancing Electronics Dresden, TU Dresden, Germany
We are interested in the interaction of light with self-assembled plasmonic cavities. In such film coupled nanoparticle structures, we will couple quantum emitters with plasmonic systems of various geometries such as spheres, cubes and anisotropic particles to study the coherent energy transfer. The self-assembly of metallic nanoparticles on a plasmonic film features a high optical quality in comparison to top-down lithography fabrication methods. Moreover, we tune the radiative process by modifying the cavity size through a polyelectrolyte multilayers approach with embedded Rhodamin B fluorophores. We employ atomic force microscopy, dark field scattering spectroscopy, fluorescence life-time imaging and TCSPC at the same cavity to show decreases in the fluorescence life-time as well as emission intensity enhancement of several orders of magnitude. Finally, we support the results with FDTD simulations for quantitative evaluation of the occurring plasmonic modes as well as the radiative and non-radiative decay rates. As an outlook, we present a robust self-assembly method supported by laser interference lithography templates to fabricate a plasmonic lattice for coherent energy transfer on macroscopic scales.