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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Maier_OE_Single_Photon
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title = "Bright single photon source based on self-aligned quantum dot-cavity systems",

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",

keywords = "Efficiency, Optics",

author = "Sebastian Maier and Peter Gold and Alfred Forchel and Niels Gregersen and Jesper Mork and Sven H{\"o}fling and Christian Schneider and Martin Kamp",

note = "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. ",

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doi = "10.1364/OE.22.008136",

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T1 - Bright single photon source based on self-aligned quantum dot-cavity systems

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

KW - Efficiency

KW - Optics

U2 - 10.1364/OE.22.008136

DO - 10.1364/OE.22.008136

M3 - Article

SN - 1094-4087

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SP - 8136

EP - 8142

JO - Optics Express

JF - Optics Express

IS - 7

ER -

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

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