Dynamics of a polariton condensate transistor switch

Authors :: Anton, C.
Liew, T. C. H.
Tosi, G.
Martin, M. D.
Gao, T.
Hatzopoulos, Z.
Eldridge, P. S.
Savvidis, P. G.
Vina, L.
Publication Year :: 2012
Abstract: We present a time-resolved study of the logical operation of a polariton condensate transistor switch. Creating a polariton condensate (source) in a GaAs ridge-shaped microcavity with a non-resonant pulsed laser beam, the polariton propagation towards a collector, at the ridge edge, is controlled by a second weak pulse (gate), located between the source and the collector. The experimental results are interpreted in the light of simulations based on the generalized Gross-Pitaevskii equation, including incoherent pumping, decay and energy relaxation within the condensate.<br />Comment: 4 pages, 2 figures