Coherent versus incoherent dynamics in InAs quantum dots: the role of elastic dephasing

Borri, Paola ORCID: https://orcid.org/0000-0002-7873-3314, Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023, Hvam, J. M. and Bimberg, D. 2000. Coherent versus incoherent dynamics in InAs quantum dots: the role of elastic dephasing. Presented at: 25th International Conference on the Physics of Semiconductors, Osaka, Japan, 17–22 September 2000. Published in: Miura, Noboru and Ando, T. eds. Proceedings of the 25th International Conference on the Physics of Semiconductors: Osaka, Japan, September 17-22, 2000. Springer Proceedings in Physics , vol.2 (87) Berlin: Springer, pp. 1221-1222.

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Abstract

Coherent dynamics measured by degenerate four-wave mixing are compared with incoherent population dynamics measured by differential transmission in InAs-based quantum dots at room temperature. The dots are embedded in an optical waveguide, that enhances the light-matter interaction length, and the measurements are performed using an heterodyne detection. Two different samples are investigated, with different confinement energies. The results reveal the elastic nature of the measured dephasing, which appears independent on the dot confinement energy.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Biosciences Physics and Astronomy
Subjects:	Q Science > QC Physics
Uncontrolled Keywords:	amplifiers; gain
Publisher:	Springer
ISBN:	3540417788
ISSN:	0930-8989
Related URLs:	Publisher
Last Modified:	13 Dec 2022 09:40
URI:	https://orca.cardiff.ac.uk/id/eprint/60262

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