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Exciton related optical absorption in a spherical quantum dot
Date
2014-11-10
Author
Aksahin, Ertan
Unal, Vildan Ustoglu
Tomak, Mehmet
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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An exciton in a spherical quantum dot is studied analytically within the effective mass approximation. A parabolic confinement under an electric field is considered. The linear and nonlinear optical absorption coefficients are calculated within the density matrix formalism. No assumptions are made about the strength of the confinement. It is shown how the competing mechanisms of the Coulomb interaction, the confinement and the applied static electric field affect the optical absorption.
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URI
https://hdl.handle.net/11511/37331
Journal
EUROPEAN PHYSICAL JOURNAL B
DOI
https://doi.org/10.1140/epjb/e2014-50305-0
Collections
Department of Physics, Article