Coherence Expansion and Polariton Condensate Formation in a Semiconductor Microcavity

V. V. Belykh; N. N. Sibeldin; V. D. Kulakovskii; M. M. Glazov; M. A. Semina; C. Schneider; Sven Höfling; M. Kamp; A. Forchel

doi:10.1103/PhysRevLett.110.137402

Coherence Expansion and Polariton Condensate Formation in a Semiconductor Microcavity

V. V. Belykh^*, N. N. Sibeldin, V. D. Kulakovskii, M. M. Glazov, M. A. Semina, C. Schneider, Sven Höfling, M. Kamp, A. Forchel

^*Corresponding author for this work

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

Abstract

The dynamics of the expansion of the first order spatial coherence g((1)) for a polariton system in a high-Q GaAs microcavity was investigated on the basis of Young's double slit experiment under 3 ps pulse excitation at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation the coherence expands with a constant velocity of about 10(8) cm/s. The measured coherence is smaller than that in a thermal equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay. The onset of spatial coherence is governed by polariton relaxation while condensate amplitude and phase fluctuations are not suppressed. DOI: 10.1103/PhysRevLett.110.137402

Original language	English
Article number	137402
Number of pages	5
Journal	Physical Review Letters
Volume	110
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.110.137402
Publication status	Published - 26 Mar 2013

Keywords

BOSE-EINSTEIN CONDENSATION

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10.1103/PhysRevLett.110.137402

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title = "Coherence Expansion and Polariton Condensate Formation in a Semiconductor Microcavity",

abstract = "The dynamics of the expansion of the first order spatial coherence g((1)) for a polariton system in a high-Q GaAs microcavity was investigated on the basis of Young's double slit experiment under 3 ps pulse excitation at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation the coherence expands with a constant velocity of about 10(8) cm/s. The measured coherence is smaller than that in a thermal equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay. The onset of spatial coherence is governed by polariton relaxation while condensate amplitude and phase fluctuations are not suppressed. DOI: 10.1103/PhysRevLett.110.137402",

keywords = "BOSE-EINSTEIN CONDENSATION",

author = "Belykh, {V. V.} and Sibeldin, {N. N.} and Kulakovskii, {V. D.} and Glazov, {M. M.} and Semina, {M. A.} and C. Schneider and Sven H{\"o}fling and M. Kamp and A. Forchel",

year = "2013",

month = mar,

day = "26",

doi = "10.1103/PhysRevLett.110.137402",

language = "English",

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TY - JOUR

T1 - Coherence Expansion and Polariton Condensate Formation in a Semiconductor Microcavity

AU - Belykh, V. V.

AU - Sibeldin, N. N.

AU - Kulakovskii, V. D.

AU - Glazov, M. M.

AU - Semina, M. A.

AU - Schneider, C.

AU - Höfling, Sven

AU - Kamp, M.

AU - Forchel, A.

PY - 2013/3/26

Y1 - 2013/3/26

N2 - The dynamics of the expansion of the first order spatial coherence g((1)) for a polariton system in a high-Q GaAs microcavity was investigated on the basis of Young's double slit experiment under 3 ps pulse excitation at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation the coherence expands with a constant velocity of about 10(8) cm/s. The measured coherence is smaller than that in a thermal equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay. The onset of spatial coherence is governed by polariton relaxation while condensate amplitude and phase fluctuations are not suppressed. DOI: 10.1103/PhysRevLett.110.137402

AB - The dynamics of the expansion of the first order spatial coherence g((1)) for a polariton system in a high-Q GaAs microcavity was investigated on the basis of Young's double slit experiment under 3 ps pulse excitation at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation the coherence expands with a constant velocity of about 10(8) cm/s. The measured coherence is smaller than that in a thermal equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay. The onset of spatial coherence is governed by polariton relaxation while condensate amplitude and phase fluctuations are not suppressed. DOI: 10.1103/PhysRevLett.110.137402

KW - BOSE-EINSTEIN CONDENSATION

U2 - 10.1103/PhysRevLett.110.137402

DO - 10.1103/PhysRevLett.110.137402

M3 - Article

SN - 0031-9007

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 137402

ER -

Coherence Expansion and Polariton Condensate Formation in a Semiconductor Microcavity

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Keywords

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