Electroluminescence studies of stacked self-assembled InAs/GaAs-quantum dots embedded in a Bragg resonator

M. Arzberger; M. Hauser; G. Böhm; A. Zrenner; G. Abstreiter

doi:10.1016/S1386-9477(98)00121-0

Electroluminescence studies of stacked self-assembled InAs/GaAs-quantum dots embedded in a Bragg resonator

M. Arzberger, M. Hauser, G. Böhm, A. Zrenner, G. Abstreiter

TUM Emeriti of Excellence

Walter Schottky Institut

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

1 Scopus citations

Abstract

In regard to achieve a vertical surface-emitting laser with quantum dots as active medium, we have realized a microcavity consisting of two distributed Bragg reflectors and three layers of self-assembled InAs quantum dots and a similar sample without DBRs for comparison. The electroluminescence of the sample without cavity is rather broad due to size fluctuations of the islands, whereas the electroluminescence of the cavity sample is dominated by a narrow (FWHM 0.38 meV) and intense line at the resonance energy of the cavity. Several transverse modes are observed due to the wave-guiding effect of the etched mesa and identified by a simple model.

Original language	English
Pages (from-to)	594-598
Number of pages	5
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	2
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(98)00121-0
State	Published - 15 Jul 1998

Keywords

Microcavity
Self-assembled quantum dots

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10.1016/S1386-9477(98)00121-0

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title = "Electroluminescence studies of stacked self-assembled InAs/GaAs-quantum dots embedded in a Bragg resonator",

abstract = "In regard to achieve a vertical surface-emitting laser with quantum dots as active medium, we have realized a microcavity consisting of two distributed Bragg reflectors and three layers of self-assembled InAs quantum dots and a similar sample without DBRs for comparison. The electroluminescence of the sample without cavity is rather broad due to size fluctuations of the islands, whereas the electroluminescence of the cavity sample is dominated by a narrow (FWHM 0.38 meV) and intense line at the resonance energy of the cavity. Several transverse modes are observed due to the wave-guiding effect of the etched mesa and identified by a simple model.",

keywords = "Microcavity, Self-assembled quantum dots",

author = "M. Arzberger and M. Hauser and G. B{\"o}hm and A. Zrenner and G. Abstreiter",

year = "1998",

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T1 - Electroluminescence studies of stacked self-assembled InAs/GaAs-quantum dots embedded in a Bragg resonator

AU - Arzberger, M.

AU - Hauser, M.

AU - Böhm, G.

AU - Zrenner, A.

AU - Abstreiter, G.

PY - 1998/7/15

Y1 - 1998/7/15

N2 - In regard to achieve a vertical surface-emitting laser with quantum dots as active medium, we have realized a microcavity consisting of two distributed Bragg reflectors and three layers of self-assembled InAs quantum dots and a similar sample without DBRs for comparison. The electroluminescence of the sample without cavity is rather broad due to size fluctuations of the islands, whereas the electroluminescence of the cavity sample is dominated by a narrow (FWHM 0.38 meV) and intense line at the resonance energy of the cavity. Several transverse modes are observed due to the wave-guiding effect of the etched mesa and identified by a simple model.

AB - In regard to achieve a vertical surface-emitting laser with quantum dots as active medium, we have realized a microcavity consisting of two distributed Bragg reflectors and three layers of self-assembled InAs quantum dots and a similar sample without DBRs for comparison. The electroluminescence of the sample without cavity is rather broad due to size fluctuations of the islands, whereas the electroluminescence of the cavity sample is dominated by a narrow (FWHM 0.38 meV) and intense line at the resonance energy of the cavity. Several transverse modes are observed due to the wave-guiding effect of the etched mesa and identified by a simple model.

KW - Microcavity

KW - Self-assembled quantum dots

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JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

ER -

Electroluminescence studies of stacked self-assembled InAs/GaAs-quantum dots embedded in a Bragg resonator

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Keywords

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