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arXiv · 1611.09731

Exciton-Polariton Flows in Cross-Dimensional Junctions

K. Winkler·H. Flayac·S. Klembt·A. Schade·D. Nevinskiy·M. Kamp·C. Schneider·S. Höfling
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Abstract

We study the nonequilibrium exciton-polariton condensation in 1D to 0D and 1D to 2D junctions by means of non-resonant spectroscopy. The shape of our potential landscape allows to probe the resonant transmission of a propagating condensate between a quasi-1D waveguide and cylindrically symmetric states. We observe a distinct mode selection by varying the position of the non-resonant pump laser. Moreover, we study the the case of propagation from a localized trapped condensate state into a waveguide channel. Here, the choice of the position of the injection laser allows us to tune the output in the waveguide. Our measurements are supported by an accurate Ginzburg-Landau modeling of the system shining light on the underlying mechanisms.

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K. Winkler, H. Flayac, S. Klembt, A. Schade, D. Nevinskiy, M. Kamp, C. Schneider, S. Höfling. 2016-11-29. Exciton-Polariton Flows in Cross-Dimensional Junctions. https://doi.org/10.1103/physrevb.95.201302

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