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arXiv · 1302.7221

Control and ultrafast dynamics of a two-fluid polariton switch

M. De Giorgi·D. Ballarini·E. Cancellieri·F. M. Marchetti·M. H. Szymanska·C. Tejedor·R. Cingolani·E. Giacobino·A. Bramati·G. Gigli·D. Sanvitto
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Abstract

We investigate the cross-interactions in a two-component polariton quantum fluid coherently driven by two independent pumping lasers tuned at different energies and momenta. We show that both the hysteresis cycles and the ON/OFF threshold of one polariton signal can be entirely controlled by a second polariton fluid. Furthermore, we study the ultrafast switching dynamics of a driven polariton state, demonstrating the ability to control the polariton population with an external laser pulse, in less than a few picoseconds.

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M. De Giorgi, D. Ballarini, E. Cancellieri, F. M. Marchetti, M. H. Szymanska, C. Tejedor, R. Cingolani, E. Giacobino, A. Bramati, G. Gigli, D. Sanvitto. 2013-02-28. Control and ultrafast dynamics of a two-fluid polariton switch. https://doi.org/10.1103/physrevlett.109.266407

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