Optical coefficients in a semiconductor quantum ring: Electric field and donor impurity effects

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dc.authoridRestrepo, R. L. -- 0000-0002-0359-353X; OJEDA SILVA, JUDITH HELENA -- 0000-0001-7004-2984en_US
dc.contributor.authorDuque, C. M.
dc.contributor.authorAcosta, Ruben E.
dc.contributor.authorMorales, A. L.
dc.contributor.authorMora-Ramos, M. E.
dc.contributor.authorRestrepo, R. L.
dc.contributor.authorOjeda, J. H.
dc.contributor.authorKasapoglu, E.
dc.contributor.authorDuque, C. A.
dc.date.accessioned2019-07-27T12:10:23Z
dc.date.accessioned2019-07-28T09:44:42Z
dc.date.available2019-07-27T12:10:23Z
dc.date.available2019-07-28T09:44:42Z
dc.date.issued2016
dc.department[Duque, C. M. -- Acosta, Ruben E. -- Morales, A. L. -- Duque, C. A.] Univ Antioquia UdeA, Fac Ciencias Exactas & Nat, Inst Fis, Grp Mat Condensada UdeA, Calle 70 52-21, Medellin, Colombia -- [Mora-Ramos, M. E.] Univ Autonoma Estado Morelos, Ctr Invest Ciencias IICBA, Ave Univ 1001, Cuernavaca 62209, Morelos, Mexico -- [Restrepo, R. L.] Univ EIA, Envigado 055428, Colombia -- [Ojeda, J. H.] Univ Pedag & Tecnol Colombia, Grp Fis Mat, Tunja, Colombia -- [Kasapoglu, E.] Cumhuriyet Univ, Dept Phys, TR-58140 Sivas, Turkeyen_US
dc.description.abstractThe electron states in a two-dimensional quantum dot ring are calculated in the presence of a donor impurity atom under the effective mass and parabolic band approximations. The effect of an externally applied electric field is also taken into account. The wavefunctions are obtained via the exact diagonalization of the problem Hamiltonian using a 2D expansion within the adiabatic approximation. The impurity-related optical response is analyzed via the optical absorption, relative refractive index change and the second harmonics generation. The dependencies of the electron states and these optical co-efficients with the changes in the configuration of the quantum ring system are discussed in detail. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.optmat.2016.07.024en_US
dc.identifier.endpage158en_US
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopus2-s2.0-84979536541en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage148en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.optmat.2016.07.024
dc.identifier.urihttps://hdl.handle.net/20.500.12418/7146
dc.identifier.volume60en_US
dc.identifier.wosWOS:000386644500026en_US
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofOPTICAL MATERIALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectQuantum ringsen_US
dc.subjectElectric fielden_US
dc.subjectDonor impurityen_US
dc.subjectOptical absorptionen_US
dc.subjectSecond harmonic generationen_US
dc.titleOptical coefficients in a semiconductor quantum ring: Electric field and donor impurity effectsen_US
dc.typeArticleen_US

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