Dresden 2014 – scientific programme

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O: Fachverband Oberflächenphysik

O 37: Posters: Plasmonics, Electronic Structure and Spin-Orbit Interaction, Semiconductor and Insulator Surfaces, Nanostructures

O 37.26: Poster

Tuesday, April 1, 2014, 18:30–22:00, P2

Photoluminescence study of SPP-supporting hybrid semiconductor-metal structures — •Sören Kreinberg¹, Matthias Salewski¹, Lars E. Kreilkamp¹, Ilya A. Akimov¹, Christian Schneider², Sven Höfling², Martin Kamp², and Manfred Bayer¹ — ¹Experimentelle Physik 2, Technische Universität Dortmund, Otto-Hahn-Straße 4, 44227 Dortmund, Germany — ²Lehrstuhl für Technische Physik, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany

We study the optical properties of hybrid nanostructures comprising self-assembled InGaAs quantum dots (QDs) located in the direct vicinity from the surface which is covered with Au grating. The Au period is optimized in oder to support the excitation of surface plasmon polaritons (SPP) by excitons in QDs emission and vice versa. Angle dependent transmission and reflection spectra show clear signatures of SPP resonances. We investigate SPP influence on exciton dynamics measured by means of time-resolved photoluminescence.