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

Borri, Paola, Langbein, Wolfgang Werner, Hvam, J. M., Heinrichsdorff, F., Mao, M. -H. and Bimberg, D. 2001. Coherent versus incoherent dynamics in InAs quantum-dot active wave guides. Journal of Applied Physics 89 (11) , pp. 6542-6544. 10.1063/1.1367410

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Coherent dynamics measured by time-resolvedfour-wave mixing is compared to incoherent population dynamicsmeasured 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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Institute of Physics
ISSN: 0021-8979
Last Modified: 16 May 2019 23:08

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