Ultrafast tracking of second-order photon correlations in the emission of quantum-dot microresonator lasers

Marc Assmann; Franziska Veit; Manfred Bayer; Christopher Gies; Frank Jahnke; Stephan Reitzenstein; Sven Höfling; Lukas Worschech; Alfred Forchel

doi:10.1103/PhysRevB.81.165314

Ultrafast tracking of second-order photon correlations in the emission of quantum-dot microresonator lasers

Marc Assmann^*, Franziska Veit, Manfred Bayer, Christopher Gies, Frank Jahnke, Stephan Reitzenstein, Sven Höfling, Lukas Worschech, Alfred Forchel

^*Corresponding author for this work

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

Abstract

Ultrafast changes in the statistical properties of light emission are studied for quantum-dot micropillar lasers. Using pulsed excitation with varying power, we follow the time evolution of the second-order correlation function g((2))(t, tau = 0) reflecting two-photon coincidences and compare it to that of the output intensity. The previously impossible time resolution of a few picoseconds gives insight into the dynamical transition between thermal and coherent light emission. The g((2)) results allow us to isolate the spontaneous and stimulated-emission contributions within an emission pulse, not accessible via the emission-intensity dynamics. Results of a microscopic theory confirm the experimental findings.

Original language	English
Article number	165314
Number of pages	5
Journal	Physical Review. B, Condensed matter and materials physics
Volume	81
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.81.165314
Publication status	Published - 15 Apr 2010

Keywords

PHASE-TRANSITION
MICROCAVITY
CAVITY

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10.1103/PhysRevB.81.165314

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title = "Ultrafast tracking of second-order photon correlations in the emission of quantum-dot microresonator lasers",

abstract = "Ultrafast changes in the statistical properties of light emission are studied for quantum-dot micropillar lasers. Using pulsed excitation with varying power, we follow the time evolution of the second-order correlation function g((2))(t, tau = 0) reflecting two-photon coincidences and compare it to that of the output intensity. The previously impossible time resolution of a few picoseconds gives insight into the dynamical transition between thermal and coherent light emission. The g((2)) results allow us to isolate the spontaneous and stimulated-emission contributions within an emission pulse, not accessible via the emission-intensity dynamics. Results of a microscopic theory confirm the experimental findings.",

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author = "Marc Assmann and Franziska Veit and Manfred Bayer and Christopher Gies and Frank Jahnke and Stephan Reitzenstein and Sven H{\"o}fling and Lukas Worschech and Alfred Forchel",

year = "2010",

month = apr,

day = "15",

doi = "10.1103/PhysRevB.81.165314",

language = "English",

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T1 - Ultrafast tracking of second-order photon correlations in the emission of quantum-dot microresonator lasers

AU - Assmann, Marc

AU - Veit, Franziska

AU - Bayer, Manfred

AU - Gies, Christopher

AU - Jahnke, Frank

AU - Reitzenstein, Stephan

AU - Höfling, Sven

AU - Worschech, Lukas

AU - Forchel, Alfred

PY - 2010/4/15

Y1 - 2010/4/15

N2 - Ultrafast changes in the statistical properties of light emission are studied for quantum-dot micropillar lasers. Using pulsed excitation with varying power, we follow the time evolution of the second-order correlation function g((2))(t, tau = 0) reflecting two-photon coincidences and compare it to that of the output intensity. The previously impossible time resolution of a few picoseconds gives insight into the dynamical transition between thermal and coherent light emission. The g((2)) results allow us to isolate the spontaneous and stimulated-emission contributions within an emission pulse, not accessible via the emission-intensity dynamics. Results of a microscopic theory confirm the experimental findings.

AB - Ultrafast changes in the statistical properties of light emission are studied for quantum-dot micropillar lasers. Using pulsed excitation with varying power, we follow the time evolution of the second-order correlation function g((2))(t, tau = 0) reflecting two-photon coincidences and compare it to that of the output intensity. The previously impossible time resolution of a few picoseconds gives insight into the dynamical transition between thermal and coherent light emission. The g((2)) results allow us to isolate the spontaneous and stimulated-emission contributions within an emission pulse, not accessible via the emission-intensity dynamics. Results of a microscopic theory confirm the experimental findings.

KW - PHASE-TRANSITION

KW - MICROCAVITY

KW - CAVITY

UR - https://www.scopus.com/pages/publications/77955393873

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DO - 10.1103/PhysRevB.81.165314

M3 - Article

SN - 1098-0121

VL - 81

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

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

IS - 16

M1 - 165314

ER -

Ultrafast tracking of second-order photon correlations in the emission of quantum-dot microresonator lasers

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Keywords

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