Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities

V.K. Kalevich, M.M. Afanasiev, V.A. Lukoshkin, D.D. Solnyshkov, G. Malpuech, K.V. Kavokin, S.I. Tsintzos, Z. Hatzopoulos, P.G. Savvidis, A.V. Kavokin

Research output

10 Citations (Scopus)

Abstract

We observe condensation of exciton polaritons in quantum states composed of concentric rings when exciting cylindrical pillar GaAs/AlGaAs microcavities nonresonantly by a focused laser beam normally incident at the center of the pillar. The number of rings depends on the pumping intensity and the pillar size, andmay achieve 5 in the pillar of 40 μm diameter. Breaking the axial symmetry when moving the excitation spot away from the pillar center leads to transformation of the rings into a number of bright lobes corresponding to quantum states with nonzero angular momenta. The number of lobes, their shape, and location are dependent on the spot position.We describe the out-of-equilibrium condensation of polaritons in the states with different principal quantum numbers and angular momenta with a formalism based on Boltzmann-Gross-Pitaevskii equations accounting for repulsion of polaritons from the exciton reservoir formed at the excitation spot and their spatial confinement by the pillar boundary.
Original languageEnglish
Pages (from-to)045305_1-9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number4
DOIs
Publication statusPublished - 2015

Fingerprint

Microcavities
Angular momentum
Excitons
polaritons
condensates
Condensation
excitons
lobes
rings
angular momentum
condensation
Laser beams
excitation
aluminum gallium arsenides
pumping
laser beams
formalism
symmetry
LDS 751
gallium arsenide

Cite this

Kalevich, V.K. ; Afanasiev, M.M. ; Lukoshkin, V.A. ; Solnyshkov, D.D. ; Malpuech, G. ; Kavokin, K.V. ; Tsintzos, S.I. ; Hatzopoulos, Z. ; Savvidis, P.G. ; Kavokin, A.V. / Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities. In: Physical Review B - Condensed Matter and Materials Physics. 2015 ; Vol. 91, No. 4. pp. 045305_1-9.
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abstract = "We observe condensation of exciton polaritons in quantum states composed of concentric rings when exciting cylindrical pillar GaAs/AlGaAs microcavities nonresonantly by a focused laser beam normally incident at the center of the pillar. The number of rings depends on the pumping intensity and the pillar size, andmay achieve 5 in the pillar of 40 μm diameter. Breaking the axial symmetry when moving the excitation spot away from the pillar center leads to transformation of the rings into a number of bright lobes corresponding to quantum states with nonzero angular momenta. The number of lobes, their shape, and location are dependent on the spot position.We describe the out-of-equilibrium condensation of polaritons in the states with different principal quantum numbers and angular momenta with a formalism based on Boltzmann-Gross-Pitaevskii equations accounting for repulsion of polaritons from the exciton reservoir formed at the excitation spot and their spatial confinement by the pillar boundary.",
author = "V.K. Kalevich and M.M. Afanasiev and V.A. Lukoshkin and D.D. Solnyshkov and G. Malpuech and K.V. Kavokin and S.I. Tsintzos and Z. Hatzopoulos and P.G. Savvidis and A.V. Kavokin",
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Kalevich, VK, Afanasiev, MM, Lukoshkin, VA, Solnyshkov, DD, Malpuech, G, Kavokin, KV, Tsintzos, SI, Hatzopoulos, Z, Savvidis, PG & Kavokin, AV 2015, 'Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities', Physical Review B - Condensed Matter and Materials Physics, vol. 91, no. 4, pp. 045305_1-9. https://doi.org/10.1103/PhysRevB.91.045305

Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities. / Kalevich, V.K.; Afanasiev, M.M.; Lukoshkin, V.A.; Solnyshkov, D.D.; Malpuech, G.; Kavokin, K.V.; Tsintzos, S.I.; Hatzopoulos, Z.; Savvidis, P.G.; Kavokin, A.V.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 91, No. 4, 2015, p. 045305_1-9.

Research output

TY - JOUR

T1 - Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities

AU - Kalevich, V.K.

AU - Afanasiev, M.M.

AU - Lukoshkin, V.A.

AU - Solnyshkov, D.D.

AU - Malpuech, G.

AU - Kavokin, K.V.

AU - Tsintzos, S.I.

AU - Hatzopoulos, Z.

AU - Savvidis, P.G.

AU - Kavokin, A.V.

PY - 2015

Y1 - 2015

N2 - We observe condensation of exciton polaritons in quantum states composed of concentric rings when exciting cylindrical pillar GaAs/AlGaAs microcavities nonresonantly by a focused laser beam normally incident at the center of the pillar. The number of rings depends on the pumping intensity and the pillar size, andmay achieve 5 in the pillar of 40 μm diameter. Breaking the axial symmetry when moving the excitation spot away from the pillar center leads to transformation of the rings into a number of bright lobes corresponding to quantum states with nonzero angular momenta. The number of lobes, their shape, and location are dependent on the spot position.We describe the out-of-equilibrium condensation of polaritons in the states with different principal quantum numbers and angular momenta with a formalism based on Boltzmann-Gross-Pitaevskii equations accounting for repulsion of polaritons from the exciton reservoir formed at the excitation spot and their spatial confinement by the pillar boundary.

AB - We observe condensation of exciton polaritons in quantum states composed of concentric rings when exciting cylindrical pillar GaAs/AlGaAs microcavities nonresonantly by a focused laser beam normally incident at the center of the pillar. The number of rings depends on the pumping intensity and the pillar size, andmay achieve 5 in the pillar of 40 μm diameter. Breaking the axial symmetry when moving the excitation spot away from the pillar center leads to transformation of the rings into a number of bright lobes corresponding to quantum states with nonzero angular momenta. The number of lobes, their shape, and location are dependent on the spot position.We describe the out-of-equilibrium condensation of polaritons in the states with different principal quantum numbers and angular momenta with a formalism based on Boltzmann-Gross-Pitaevskii equations accounting for repulsion of polaritons from the exciton reservoir formed at the excitation spot and their spatial confinement by the pillar boundary.

U2 - 10.1103/PhysRevB.91.045305

DO - 10.1103/PhysRevB.91.045305

M3 - Article

VL - 91

SP - 045305_1-9

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 4

ER -