Nonlinear optical response and exciton dephasing in quantum dots

Muljarov, Egor A. ORCID: https://orcid.org/0000-0002-2878-4148 and Zimmermann, R. 2006. Nonlinear optical response and exciton dephasing in quantum dots. physica status solidi (b) 243 (10) , pp. 2252-2256. 10.1002/pssb.200668036

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Abstract

The full time-dependent four-wave mixing polarization in quantum dots is microscopically calculated, taking into account acoustic phonon-assisted transitions between different exciton states of the dot. It is shown that quite different dephasing times of higher exciton states in pancake anisotropic InGaAs quantum dots are responsible for the experimentally observed [1] double-exponential decay in the photon echo signal.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	Wiley-Blackwell
ISSN:	0370-1972
Last Modified:	24 Oct 2022 11:32
URI:	https://orca.cardiff.ac.uk/id/eprint/48484

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