Research output: Contribution to journal › Article
Ring-shaped polariton lasing in pillar microcavities. / Kalevich, V.K.; Afanasiev, M.M.; Lukoshkin, V.A.; Kavokin, K.V.; Tsintzos, S.I.; Savvidis, P.G.; Kavokin, A.V.
In: Journal of Applied Physics, Vol. 115, No. 9, 2014, p. 094304_1-4.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Ring-shaped polariton lasing in pillar microcavities
AU - Kalevich, V.K.
AU - Afanasiev, M.M.
AU - Lukoshkin, V.A.
AU - Kavokin, K.V.
AU - Tsintzos, S.I.
AU - Savvidis, P.G.
AU - Kavokin, A.V.
PY - 2014
Y1 - 2014
N2 - Optically generated exciton-polaritons in cylindric semiconductor pillar microcavity with embedded GaAs/AlGaAs quantum wells demonstrate a clear polariton lasing regime. When exciting in the center of the pillar, we detect a ring-shaped emission, where the peak of intensity can be separated from the excitation spot by more than 10 lm. The spatial coherence of the ring emission is verified by interferometry measurements. These observations are interpreted by drift of the exciton polariton condensate away from the excitation spot due to its repulsion from the exciton reservoir and by its spatial confinement by the pillar boundary.
AB - Optically generated exciton-polaritons in cylindric semiconductor pillar microcavity with embedded GaAs/AlGaAs quantum wells demonstrate a clear polariton lasing regime. When exciting in the center of the pillar, we detect a ring-shaped emission, where the peak of intensity can be separated from the excitation spot by more than 10 lm. The spatial coherence of the ring emission is verified by interferometry measurements. These observations are interpreted by drift of the exciton polariton condensate away from the excitation spot due to its repulsion from the exciton reservoir and by its spatial confinement by the pillar boundary.
U2 - 10.1063/1.4867519
DO - 10.1063/1.4867519
M3 - Article
VL - 115
SP - 094304_1-4
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 9
ER -
ID: 7005738