Dynamics of a polariton condensate transistor switch

• Main Authors: Liew, Timothy Chi Hin, Eldridge, P. S., Antón, C., Tosi, G., Martín, M. D., Gao, T., Hatzopoulos, Z., Savvidis, P. G., Viña, L.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/100620; http://hdl.handle.net/10220/18579
• Institution: Nanyang Technological University

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.