Bright single photon source based on self-aligned quantum dot-cavity systems

Sebastian Maier; Peter Gold; Alfred Forchel; Niels Gregersen; Jesper Mork; Sven Höfling; Christian Schneider; Martin Kamp

doi:10.1364/OE.22.008136

Bright single photon source based on self-aligned quantum dot-cavity systems

Sebastian Maier^*, Peter Gold, Alfred Forchel, Niels Gregersen, Jesper Mork, Sven Höfling, Christian Schneider, Martin Kamp

^*Corresponding author for this work

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

Abstract

We report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturally arising coupled quantum dot-defects provide a new avenue for efficient (up to 42% demonstrated) and pure (g²(0) value of 0.023) single-photon emission. (C) 2014 Optical Society of America

Original language	English
Pages (from-to)	8136-8142
Number of pages	7
Journal	Optics Express
Volume	22
Issue number	7
Early online date	31 Mar 2014
DOIs	https://doi.org/10.1364/OE.22.008136
Publication status	Published - 7 Apr 2014

Keywords

Efficiency
Optics

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10.1364/OE.22.008136

Maier_OE_Single_Photon
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abstract = "We report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturally arising coupled quantum dot-defects provide a new avenue for efficient (up to 42% demonstrated) and pure (g2(0) value of 0.023) single-photon emission. (C) 2014 Optical Society of America",

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AU - Maier, Sebastian

AU - Gold, Peter

AU - Forchel, Alfred

AU - Gregersen, Niels

AU - Mork, Jesper

AU - Höfling, Sven

AU - Schneider, Christian

AU - Kamp, Martin

N1 - This work was financially supported by the German Ministry of Education and Research (BMBF) via the project QuaHL-Rep and by the State of Bavaria.

PY - 2014/4/7

Y1 - 2014/4/7

N2 - We report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturally arising coupled quantum dot-defects provide a new avenue for efficient (up to 42% demonstrated) and pure (g2(0) value of 0.023) single-photon emission. (C) 2014 Optical Society of America

AB - We report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturally arising coupled quantum dot-defects provide a new avenue for efficient (up to 42% demonstrated) and pure (g2(0) value of 0.023) single-photon emission. (C) 2014 Optical Society of America

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KW - Optics

U2 - 10.1364/OE.22.008136

DO - 10.1364/OE.22.008136

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Bright single photon source based on self-aligned quantum dot-cavity systems

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