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Edge-emitting polariton laser and amplifier based on a ZnO waveguide

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arxiv 1708.00501 v3 pith:X6AQL3PM submitted 2017-08-01 cond-mat.mes-hall

O. Jamadi , F. Reveret , P. Disseix , F. Medard , J. Leymarie , A. Moreau , D. Solnyshkov , C. Deparis
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M. Leroux E. Cambril S. Bouchoule J. Zuniga-Perez G. Malpuech
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classification cond-mat.mes-hall
keywords polaritonlasingedge-emittingguidedmodesthresholdaboveallowing
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We demonstrate edge-emitting exciton-polariton (polariton) lasing from 5 to 300 K and amplification of non-radiative guided polariton modes within ZnO waveguides. The mode dispersion below and above the lasing threshold is directly measured using gratings present on top of the sample, fully demonstrating the polaritonic nature of the lasing modes. The threshold is found to be similar to that of radiative polarions in planar ZnO microcavities. These results open broad perspectives for guided polaritonics by allowing an easier and more straightforward implementation of polariton integrated circuits exploiting fast propagating polaritons.

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