Nonlinear optical rectification and optical absorption in GaAs-Ga1-xAlxAs double quantum wells under applied electric and magnetic fields

Basit Öğe Kaydı
dc.contributor.authorKarabulut, I.
dc.contributor.authorDuque, C. A.
dc.date.accessioned2020-03-26T18:15:25Z
dc.date.available2020-03-26T18:15:25Z
dc.date.issued2011
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this work are studied the electron-related nonlinear optical absorption and nonlinear optical rectification in GaAs-Ga1-xAlxAs asymmetric double quantum wells under applied electric and magnetic field. The density matrix formalism and the effective mass and parabolic band approximations have been considered. The main findings show that in asymmetrical heterostructures under an appropriate strength of the electric field it is possible that the optical rectification is zero and in such circumstances the optical absorption has a relative maximum; similar behavior is observed in these optical properties as a function of the length of one of the two quantum wells and without applied electric field. Also, the results suggest that in asymmetric double quantum wells the optical absorption is a nonmonotonic increasing (decreasing) function of the applied magnetic field (width of the central barrier) and that particularly when the optical absorption has an inflection point the optical absorption has an absolute maximum. Finally we found that the resonant peaks in the nonlinear optical rectification and nonlinear optical absorption can be red-shifted to low photon energies or blue-shifted to large photon energies depending on the energy difference of the two lowest confined states in the heterostructure, and this condition can be controlled by changes in the external proofs such us applied electric and magnetic fields or by changes in the structural dimensions of the coupled quantum well system. (C) 2011 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipColombian Agencies CODI-Universidad de Antioquia (Estrategia de Sostenibilidad Grupo de Materia Condensada-UdeA); Facultad de Ciencias Exactas y Naturales-Universidad de Antioquia; Excellence Center for Novel Materials; COLCIENCIASDepartamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias [043-2005]en_US
dc.description.sponsorshipThe authors would like to thank the Colombian Agencies CODI-Universidad de Antioquia (Estrategia de Sostenibilidad Grupo de Materia Condensada-UdeA, 2009-2010), Facultad de Ciencias Exactas y Naturales-Universidad de Antioquia (CAD-exclusive dedication project 2009-2010), and the Excellence Center for Novel Materials, and COLCIENCIAS, under Contract no. 043-2005, for partial financial support. C.A.D. is grateful to Dr. Anna Kurczyfiska for critical reading of the manuscript and useful discussions.en_US
dc.identifier.doi10.1016/j.physe.2011.03.013en_US
dc.identifier.endpage1410en_US
dc.identifier.issn1386-9477en_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1405en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.physe.2011.03.013
dc.identifier.urihttps://hdl.handle.net/20.500.12395/26676
dc.identifier.volume43en_US
dc.identifier.wosWOS:000291835300018en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofPHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleNonlinear optical rectification and optical absorption in GaAs-Ga1-xAlxAs double quantum wells under applied electric and magnetic fieldsen_US
dc.typeArticleen_US

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