Effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities

A. S. Brichkin; S. I. Novikov; A. V. Larionov; V. D. Kulakovskii; M. M. Glazov; C. Schneider; Sven Höfling; M. Kamp; A. Forchel

doi:10.1103/PhysRevB.84.195301

Effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities

A. S. Brichkin^*, S. I. Novikov, A. V. Larionov, V. D. Kulakovskii, M. M. Glazov, C. Schneider, Sven Höfling, M. Kamp, A. Forchel

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

The effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities with lateral size of the order of 10 mu m has been investigated by means of a nonresonant excitation with various spot sizes. A local excitation with a small laser spot has been shown to allow for control of the spatial potential of the lower polariton branch in the pillar and manipulation of the polariton condensate wave function, polarization, and energy. Contributions to the blueshift of the condensate mode resulting from interactions within the condensate and from those of condensed polaritons with the photoexcited exciton reservoir have been separated, and the constant of polariton-polariton interaction in the condensate has been evaluated experimentally and compared with the results of the theoretical model.

Original language	English
Article number	195301
Number of pages	7
Journal	Physical Review. B, Condensed matter and materials physics
Volume	84
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.84.195301
Publication status	Published - 3 Nov 2011

Keywords

BOSE-EINSTEIN CONDENSATION
SEMICONDUCTOR MICROCAVITIES
CAVITY POLARITONS
SPIN RELAXATION
SCATTERING
DYNAMICS

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10.1103/PhysRevB.84.195301

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title = "Effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities",

abstract = "The effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities with lateral size of the order of 10 mu m has been investigated by means of a nonresonant excitation with various spot sizes. A local excitation with a small laser spot has been shown to allow for control of the spatial potential of the lower polariton branch in the pillar and manipulation of the polariton condensate wave function, polarization, and energy. Contributions to the blueshift of the condensate mode resulting from interactions within the condensate and from those of condensed polaritons with the photoexcited exciton reservoir have been separated, and the constant of polariton-polariton interaction in the condensate has been evaluated experimentally and compared with the results of the theoretical model.",

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author = "Brichkin, {A. S.} and Novikov, {S. I.} and Larionov, {A. V.} and Kulakovskii, {V. D.} and Glazov, {M. M.} and C. Schneider and Sven H{\"o}fling and M. Kamp and A. Forchel",

year = "2011",

month = nov,

day = "3",

doi = "10.1103/PhysRevB.84.195301",

language = "English",

volume = "84",

journal = "Physical Review. B, Condensed matter and materials physics",

issn = "1098-0121",

publisher = "American Physical Society",

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TY - JOUR

T1 - Effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities

AU - Brichkin, A. S.

AU - Novikov, S. I.

AU - Larionov, A. V.

AU - Kulakovskii, V. D.

AU - Glazov, M. M.

AU - Schneider, C.

AU - Höfling, Sven

AU - Kamp, M.

AU - Forchel, A.

PY - 2011/11/3

Y1 - 2011/11/3

N2 - The effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities with lateral size of the order of 10 mu m has been investigated by means of a nonresonant excitation with various spot sizes. A local excitation with a small laser spot has been shown to allow for control of the spatial potential of the lower polariton branch in the pillar and manipulation of the polariton condensate wave function, polarization, and energy. Contributions to the blueshift of the condensate mode resulting from interactions within the condensate and from those of condensed polaritons with the photoexcited exciton reservoir have been separated, and the constant of polariton-polariton interaction in the condensate has been evaluated experimentally and compared with the results of the theoretical model.

AB - The effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities with lateral size of the order of 10 mu m has been investigated by means of a nonresonant excitation with various spot sizes. A local excitation with a small laser spot has been shown to allow for control of the spatial potential of the lower polariton branch in the pillar and manipulation of the polariton condensate wave function, polarization, and energy. Contributions to the blueshift of the condensate mode resulting from interactions within the condensate and from those of condensed polaritons with the photoexcited exciton reservoir have been separated, and the constant of polariton-polariton interaction in the condensate has been evaluated experimentally and compared with the results of the theoretical model.

KW - BOSE-EINSTEIN CONDENSATION

KW - SEMICONDUCTOR MICROCAVITIES

KW - CAVITY POLARITONS

KW - SPIN RELAXATION

KW - SCATTERING

KW - DYNAMICS

U2 - 10.1103/PhysRevB.84.195301

DO - 10.1103/PhysRevB.84.195301

M3 - Article

SN - 1098-0121

VL - 84

JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

IS - 19

M1 - 195301

ER -

Effect of Coulomb interaction on exciton-polariton condensates in GaAs pillar microcavities

Abstract

Keywords

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