Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 36: Poster Ib

HL 36.24: Poster

Dienstag, 8. März 2016, 15:00–19:00, Poster A

Power-dependent resonant Rayleigh scattering of exciton-polaritons — •Bernd Berger¹, Johannes Schmutzler¹, Daniel Schmidt¹, Marc Aßmann¹, Martin Kamp², Christian Schneider², Sven Höfling², and Manfred Bayer¹ — ¹Experimentelle Physik 2, Technische Universität Dortmund, D-44221 Dortmund, Germany — ²Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, D-97074 Würzburg, Germany

In a two dimensional DBR-microcavity a condensate of exciton-polaritons is formed by resonant excitation. Due to the non-zero in-plane momentum resulting from resonant excitation the condensate propagates inside the microcavity and undergoes Rayleigh scattering at structural defects of the sample. Characteristic scattering rings in the Fourier space image of transmitted light are identified and examined. Especially the influence of different excitation parameters on the scattering patterns is examined systematically and will be presented.