Linear and nonlinear optical absorption coefficients and refractive index changes in spherical quantum dots: Effects of impurities, electric field, size, and optical intensity

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dc.contributor.authorKarabulut, Ibrahim
dc.contributor.authorBaskoutas, Sotirios
dc.date.accessioned2020-03-26T17:27:11Z
dc.date.available2020-03-26T17:27:11Z
dc.date.issued2008
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the present work, the case of a spherical quantum dot with parabolic confinement subjected to an external electric field with the presence of an impurity, the linear and third-order nonlinear optical absorption coefficients as well as refractive index changes have been calculated. The numerical method we are using for the calculation of the energy levels and the corresponding wave functions is the potential morphing method in the effective mass approximation. As our results indicate an increase of the electric field and/or the position of the impurity and/or the quantum dot radius redshifts the peak positions of the total absorption coefficient and total refractive index changes. Additionally, an increase of the position of the impurity and/or the quantum dot radius decreases the total absorption coefficient and increases the total refractive index changes. An increase also of the electric field decreases the total absorption coefficient but does not significantly affect the peak values of the total refractive index changes. Finally, an increase of the optical intensity considerably changes the total absorption coefficient as well as the total refractive index changes. (C) 2008 American Institute of Physics.en_US
dc.identifier.doi10.1063/1.2904860en_US
dc.identifier.issn0021-8979en_US
dc.identifier.issn1089-7550en_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://dx.doi.org/10.1063/1.2904860
dc.identifier.urihttps://hdl.handle.net/20.500.12395/22494
dc.identifier.volume103en_US
dc.identifier.wosWOS:000255043200020en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAMER INST PHYSICSen_US
dc.relation.ispartofJOURNAL OF APPLIED PHYSICSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleLinear and nonlinear optical absorption coefficients and refractive index changes in spherical quantum dots: Effects of impurities, electric field, size, and optical intensityen_US
dc.typeArticleen_US

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