Title :
Condensation of polaritons through optical confinement: Increased coherence and reduced threshold
Author :
Askitopopulos, A. ; Ohadi, H. ; Hatzopoulos, Z. ; Savvidis, P.G. ; Kavokin, A.V. ; Lagoudakis, P.G.
Author_Institution :
Sch. of Phys. & Astron., Univ. of Southampton, Southampton, UK
Abstract :
We report on a fully optically confined exciton-polariton condensate, spatially separated from the pump induced excitonic reservoir and analyze its formation process. The optically trapped condensate exhibits higher coherence features and an order of magnitude lower excitation density threshold with respect to previous excitation schemes as a result of the reduction of dephasing and depletion mechanisms associated with the interaction with the reservoir.
Keywords :
condensation; excitons; optical pumping; polaritons; radiation pressure; coherence features; dephasing mechanism reduction; depletion mechanism reduction; excitation density threshold; formation process; fully optically confined exciton-polariton condensate; optical confinement; optically trapped condensate; order of magnitude; polariton condensation; pump induced excitonic reservoir; threshold reduction; Educational institutions; Microcavities; Optical filters; Optical imaging; Optical pumping; Physics; Reservoirs;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
