Time resolved emission at 1.3 μm of a single InAs quantum dot by using a tunable fibre Bragg grating

G. Muñoz-Matutano; D. Rivas; A. L. Ricchiuti; D. Barrera; C. R. Fernández-Pousa; J. Martínez-Pastor; L. Seravalli; G. Trevisi; P. Frigeri; S. Sales

doi:10.1088/0957-4484/25/3/035204

Time resolved emission at 1.3 μm of a single InAs quantum dot by using a tunable fibre Bragg grating

G. Muñoz-Matutano, D. Rivas, A. L. Ricchiuti, D. Barrera, C. R. Fernández-Pousa, J. Martínez-Pastor, L. Seravalli, G. Trevisi, P. Frigeri, S. Sales

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

11 Citations (Scopus)

Abstract

Photoluminescence and time resolved photoluminescence from single metamorphic InAs/GaAs quantum dots (QDs) emitting at 1.3 μm have been measured by means of a novel fibre-based characterization set-up. We demonstrate that the use of a wavelength tunable fibre Bragg grating filter increases the light collection efficiency by more than one order of magnitude as compared to a conventional grating monochromator. We identified single charged exciton and neutral biexciton transitions in the framework of a random population model. The QD recombination dynamics under pulsed excitation can be understood under the weak quantum confinement potential limit and the interaction between carriers at the wetting layer and QD states.

Original language	English
Article number	035204
Pages (from-to)	1-7
Number of pages	7
Journal	Nanotechnology
Volume	25
Issue number	3
DOIs	https://doi.org/10.1088/0957-4484/25/3/035204
Publication status	Published - 24 Jan 2014
Externally published	Yes

Keywords

excitons
fibre Bragg grating
single quantum dot
time resolved spectroscopy

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10.1088/0957-4484/25/3/035204

Cite this

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title = "Time resolved emission at 1.3 μm of a single InAs quantum dot by using a tunable fibre Bragg grating",

abstract = "Photoluminescence and time resolved photoluminescence from single metamorphic InAs/GaAs quantum dots (QDs) emitting at 1.3 μm have been measured by means of a novel fibre-based characterization set-up. We demonstrate that the use of a wavelength tunable fibre Bragg grating filter increases the light collection efficiency by more than one order of magnitude as compared to a conventional grating monochromator. We identified single charged exciton and neutral biexciton transitions in the framework of a random population model. The QD recombination dynamics under pulsed excitation can be understood under the weak quantum confinement potential limit and the interaction between carriers at the wetting layer and QD states.",

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T1 - Time resolved emission at 1.3 μm of a single InAs quantum dot by using a tunable fibre Bragg grating

AU - Muñoz-Matutano, G.

AU - Rivas, D.

AU - Ricchiuti, A. L.

AU - Barrera, D.

AU - Fernández-Pousa, C. R.

AU - Martínez-Pastor, J.

AU - Seravalli, L.

AU - Trevisi, G.

AU - Frigeri, P.

AU - Sales, S.

PY - 2014/1/24

Y1 - 2014/1/24

N2 - Photoluminescence and time resolved photoluminescence from single metamorphic InAs/GaAs quantum dots (QDs) emitting at 1.3 μm have been measured by means of a novel fibre-based characterization set-up. We demonstrate that the use of a wavelength tunable fibre Bragg grating filter increases the light collection efficiency by more than one order of magnitude as compared to a conventional grating monochromator. We identified single charged exciton and neutral biexciton transitions in the framework of a random population model. The QD recombination dynamics under pulsed excitation can be understood under the weak quantum confinement potential limit and the interaction between carriers at the wetting layer and QD states.

AB - Photoluminescence and time resolved photoluminescence from single metamorphic InAs/GaAs quantum dots (QDs) emitting at 1.3 μm have been measured by means of a novel fibre-based characterization set-up. We demonstrate that the use of a wavelength tunable fibre Bragg grating filter increases the light collection efficiency by more than one order of magnitude as compared to a conventional grating monochromator. We identified single charged exciton and neutral biexciton transitions in the framework of a random population model. The QD recombination dynamics under pulsed excitation can be understood under the weak quantum confinement potential limit and the interaction between carriers at the wetting layer and QD states.

KW - excitons

KW - fibre Bragg grating

KW - single quantum dot

KW - time resolved spectroscopy

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M1 - 035204

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Time resolved emission at 1.3 μm of a single InAs quantum dot by using a tunable fibre Bragg grating

Abstract

Keywords

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