Gain-Induced Trapping of Microcavity Exciton Polariton Condensates

Georgios Roumpos; Wolfgang H. Nitsche; Sven Höfling; Alfred Forchel; Yoshihisa Yamamoto

doi:10.1103/PhysRevLett.104.126403

Gain-Induced Trapping of Microcavity Exciton Polariton Condensates

Georgios Roumpos^*, Wolfgang H. Nitsche, Sven Höfling, Alfred Forchel, Yoshihisa Yamamoto

^*Corresponding author for this work

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

Abstract

We have performed real and momentum space spectroscopy of exciton polariton condensates in a GaAs-based microcavity under nonresonant excitation with an intensity-stabilized laser. An effective trapping mechanism is revealed, which is due to the stimulated scattering gain inside the finite excitation spot combined with the short lifetime. We observe several quantized modes while the lowest state shows Heisenberg-limited real and momentum space distributions. The experimental findings are qualitatively reproduced by an open dissipative Gross-Pitaevskii equation model.

Original language	English
Article number	126403
Number of pages	4
Journal	Physical Review Letters
Volume	104
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.104.126403
Publication status	Published - 26 Mar 2010

Keywords

BOSE-EINSTEIN CONDENSATION

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10.1103/PhysRevLett.104.126403

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title = "Gain-Induced Trapping of Microcavity Exciton Polariton Condensates",

abstract = "We have performed real and momentum space spectroscopy of exciton polariton condensates in a GaAs-based microcavity under nonresonant excitation with an intensity-stabilized laser. An effective trapping mechanism is revealed, which is due to the stimulated scattering gain inside the finite excitation spot combined with the short lifetime. We observe several quantized modes while the lowest state shows Heisenberg-limited real and momentum space distributions. The experimental findings are qualitatively reproduced by an open dissipative Gross-Pitaevskii equation model.",

keywords = "BOSE-EINSTEIN CONDENSATION",

author = "Georgios Roumpos and Nitsche, {Wolfgang H.} and Sven H{\"o}fling and Alfred Forchel and Yoshihisa Yamamoto",

year = "2010",

month = mar,

day = "26",

doi = "10.1103/PhysRevLett.104.126403",

language = "English",

volume = "104",

journal = "Physical Review Letters",

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T1 - Gain-Induced Trapping of Microcavity Exciton Polariton Condensates

AU - Roumpos, Georgios

AU - Nitsche, Wolfgang H.

AU - Höfling, Sven

AU - Forchel, Alfred

AU - Yamamoto, Yoshihisa

PY - 2010/3/26

Y1 - 2010/3/26

N2 - We have performed real and momentum space spectroscopy of exciton polariton condensates in a GaAs-based microcavity under nonresonant excitation with an intensity-stabilized laser. An effective trapping mechanism is revealed, which is due to the stimulated scattering gain inside the finite excitation spot combined with the short lifetime. We observe several quantized modes while the lowest state shows Heisenberg-limited real and momentum space distributions. The experimental findings are qualitatively reproduced by an open dissipative Gross-Pitaevskii equation model.

AB - We have performed real and momentum space spectroscopy of exciton polariton condensates in a GaAs-based microcavity under nonresonant excitation with an intensity-stabilized laser. An effective trapping mechanism is revealed, which is due to the stimulated scattering gain inside the finite excitation spot combined with the short lifetime. We observe several quantized modes while the lowest state shows Heisenberg-limited real and momentum space distributions. The experimental findings are qualitatively reproduced by an open dissipative Gross-Pitaevskii equation model.

KW - BOSE-EINSTEIN CONDENSATION

U2 - 10.1103/PhysRevLett.104.126403

DO - 10.1103/PhysRevLett.104.126403

M3 - Article

SN - 0031-9007

VL - 104

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 126403

ER -

Gain-Induced Trapping of Microcavity Exciton Polariton Condensates

Abstract

Keywords

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