Refractive index dynamics of InAs/GaAs quantum dots

Houlihan, John (2013) Refractive index dynamics of InAs/GaAs quantum dots. APPLIED PHYSICS LETTERS, 103. ISSN 0003-6951/2013/103(2)/021114/4

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Abstract

The refractive index dynamics of an InAs/InGaAs/GaAs dots-in-a-well semiconductor optical amplifier is calculated and compared with experimental results. The fast and slow recovery timescales together with the behaviour with increasing injection are reproduced and explained in terms of the density of carriers available in upper quantum dot and continuum states. Also, a Coulomb-mediated shift of the dot susceptibility is suggested as responsible for the fast recovery of the phase

Item Type: Article
Departments or Groups: Optics Research Group
Divisions: School of Science > Department of Computing, Maths and Physics
SWORD Depositor: Linda Sheahan
Depositing User: John Houlihan
Date Deposited: 30 Jul 2014 14:57
Last Modified: 22 Aug 2016 10:27
URI: http://repository.wit.ie/id/eprint/2860

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