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Journal article

Coherent versus incoherent dynamics in InAs quantum-dot active wave guides

By Borri, Paola; Langbein, W.; Hvam, Jørn Märcher1,2; Heinrichsdorff, F.3; Mao, M.-H.3; Bimberg, D.3

From

Optoelectronics, Department of Photonics Engineering, Technical University of Denmark1

Department of Photonics Engineering, Technical University of Denmark2

Technische Universität Berlin3

Coherent dynamics measured by time-resolved four-wave mixing is compared to incoherent population dynamics measured by differential transmission spectroscopy on the ground-state transition at room temperature of two types of InAs-based quantum dots with different confinement energies. The measurements are performed with heterodyne detection on quantum-dot active wave guides to enhance the light-matter interaction length.

An elastic nature of the measured dephasing is revealed which is independent of the dot energy level scheme.

Language: English
Publisher: AIP Publishing
Year: 2001
Pages: 6542-6544
ISSN: 10897550 and 00218979
Types: Journal article
DOI: 10.1063/1.1367410
ORCIDs: Hvam, Jørn Märcher

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