Temperature-dependent time-resolved four-wave mixing in InGaAs quantum dots

Borri, Paola ORCID: https://orcid.org/0000-0002-7873-3314, Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023, Woggon, U., Sellin, R. L., Ouyang, D. and Bimberg, D. 2002. Temperature-dependent time-resolved four-wave mixing in InGaAs quantum dots. physica status solidi (a) 190 (2) , pp. 517-521. 10.1002/1521-396X(200204)190:2<517::AID-PSSA517>3.0.CO;2-K

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Abstract

Time-resolved four-wave mixing in strongly confined and electrically pumped InGaAs quantum dots is measured at different temperatures. Without electrical injection, the dephasing time of the dot ground state transition is lifetime-limited and of several hundred picoseconds at low temperature. Under electrical injection, the sum of the contributions from empty and populated dots with a relative phase shift of π is evidenced near transparency.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	Wiley
ISSN:	1862-6319
Last Modified:	25 Oct 2022 09:41
URI:	https://orca.cardiff.ac.uk/id/eprint/59656

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