Radiative coupling in single quantum wells and Bragg structures

D. Ammerlahn; J. Kuhl; B. Grote; S. W. Koch; G. Khitrova; H. Gibbs; R. Hey; K. H. Ploog

doi:10.1002/1521-3951(200009)221:1<101::AID-PSSB101>3.0.CO;2-T

Radiative coupling in single quantum wells and Bragg structures

D. Ammerlahn, J. Kuhl, B. Grote, S. W. Koch, G. Khitrova, H. Gibbs, R. Hey, K. H. Ploog

Optical Sciences, College of

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

Abstract

Time-integrated four-wave mixing experiments reveal strong influence of the cladding layer thickness d₁, its refractive index and the reflectivity of the sample-air interface on the radiative dephasing time T_rad of excitons in single quantum wells and multiple quantum well structures. A cladding layer thickness of λ/2 and λ/4 decreases and increases, respectively, T_rad. Furthermore, we show that the superradiance is not limited to the heavy-hole exciton but can be observed even on excited and light-hole-exciton states as well as on correlated electron-hole-pair states. All findings agree fairly well with solutions of the semiconductor Maxwell-Bloch equations.

Original language	English (US)
Pages (from-to)	101-106
Number of pages	6
Journal	Physica Status Solidi (B) Basic Research
Volume	221
Issue number	1
DOIs	https://doi.org/10.1002/1521-3951(200009)221:1<101::AID-PSSB101>3.0.CO;2-T
State	Published - Sep 2000

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "Time-integrated four-wave mixing experiments reveal strong influence of the cladding layer thickness d1, its refractive index and the reflectivity of the sample-air interface on the radiative dephasing time Trad of excitons in single quantum wells and multiple quantum well structures. A cladding layer thickness of λ/2 and λ/4 decreases and increases, respectively, Trad. Furthermore, we show that the superradiance is not limited to the heavy-hole exciton but can be observed even on excited and light-hole-exciton states as well as on correlated electron-hole-pair states. All findings agree fairly well with solutions of the semiconductor Maxwell-Bloch equations.",

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AU - Ammerlahn, D.

AU - Kuhl, J.

AU - Grote, B.

AU - Koch, S. W.

AU - Khitrova, G.

AU - Gibbs, H.

AU - Hey, R.

AU - Ploog, K. H.

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