Control and ultrafast dynamics of a two-fluid polariton switch.
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.
NNL, Istituto Nanoscienze-CNR, Via Arnesano, 73100 Lecce, Italy. milena.degiorgi@unisalento.it
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De Giorgi
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Ballarini
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Cancellieri
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Marchetti
M H
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Szymanska
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Tejedor
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R
Cingolani
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Giacobino
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Bramati
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Gigli
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Sanvitto