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Seminário de Computação e Informação Quântica   RSS

10/07/2015, 10:00 — 11:30 — Sala P3.10, Pavilhão de Matemática
, Wuerzburg University and University of St Andrews

Exciton-polariton condensates

Semiconductor diode lasers play a major role in everyday life in our information society. These lasers generate coherent light by stimulated emission of photons. In contrast, laser-like operation can be obtained also by stimulated scattering of bosonic quasiparticles called exciton-polaritons into the ground state of strongly coupled light-matter systems in microcavities. This polariton laser or dynamic and non-equilibrium polariton condensate regime can be reached with pump thresholds lower than conventional lasing. The exciton-polaritons decay by the leakage of photons from a cavity, which produces a monochromatic and coherent light output. In this talk, we discuss the electrical injection of exciton-polaritons into microcavity structures and the formation of exciton-polariton condensates in lattice structures with deep and tailorable confinement potential.


Apoiado por: Phys-Info (IT), SQIG (IT), CeFEMA e CAMGSD, com financiamento de FCT, FEDER and EU FP7, especificamente via o Doctoral Programme in the Physics and Mathematics of Information (DP-PMI), os projectos estratégicos FCT PEst-OE/EEI/LA0008/2013 e UID/EEA/50008/2013, o projecto IT QuSim, o projecto CRUP-CPU CQVibes, a Acção de Coordenação FP7 QUTE-EUROPE (600788) e os projectos FP7 Landauer (GA 318287) e PAPETS (323901).

Instituto de TelecomunicaçõesCAMGSDFCT7th Framework Programme