Abstract

We study the propagation of a polariton condensate in a one-dimensional ZnO microwire at room temperature. We demonstrate that the energy and profile of the polariton condensate fluid in momentum space are well preserved for tens of micrometers during the propagation, without obvious dispersion phenomena over the experimental range. We demonstrate the spatial coherence of the extended condensate by carrying out a Young’s double-slit experiment. Our system practically leads to high-fidelity information carried by a polariton propagating in a waveguide device.

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