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Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots

Stevenson, R M and Young, R J and See, P and Gevaux, D G and Cooper, K and Atkinson, P and Farrer, I and Ritchie, D A and Shields, A J (2006) Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots. Physical Review B, 73 (3). -. ISSN 1098-0121

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Abstract

By the application of an in-plane magnetic field, we demonstrate control of the fine structure polarization splitting of the exciton emission lines in individual InAs quantum dots. The selection of quantum dots with certain barrier composition and confinement energies is found to determine the magnetic field dependent increase or decrease of the separation of the bright exciton emission lines, and has enabled the splitting to be tuned to zero within the resolution of our experiments. Observed behavior allows us to determine g factors and exchange splittings for different types of dots.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 54927
Deposited By: ep_importer_pure
Deposited On: 07 Jun 2012 12:37
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:37
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/54927

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