Nonlinear optical response in intersubband transitions of a symmetric quantum well: Role of electron-electron interactions

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dc.contributor.authorKarabulut, Ibrahim
dc.date.accessioned2020-03-26T19:42:10Z
dc.date.available2020-03-26T19:42:10Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractWe investigate theoretically the saturation problem of the nonlinear intersubband response in a symmetric quantum well. We first obtain the analytical expressions for the absorption/dispersion spectra from the steady-state solutions of the nonlinear density matrix equations. This expressions include the depolarization effect that results from the electron-electron interactions and also depends on the population difference between the first two subbands. We calculate the line shape of the dispersion spectrum and show that the dispersion spectrum becomes non-antisymetric as the intensity of the radiation increases. For larger values of the electron sheet density, this distortion becomes more apparent. We also find that the optical bistability can be obtained for appropriate values of the electron sheet density and the intensity of the optical radiation. Our results also show that the electron redistribution among the subbands by additional external factor has a dramatic effect on the nonlinear intersubband response. (C) 2017 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.spmi.2017.06.034en_US
dc.identifier.endpage187en_US
dc.identifier.issn0749-6036en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage181en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.spmi.2017.06.034
dc.identifier.urihttps://hdl.handle.net/20.500.12395/35326
dc.identifier.volume111en_US
dc.identifier.wosWOS:000415768800020en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofSUPERLATTICES AND MICROSTRUCTURESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectNonlinear optical propertiesen_US
dc.subjectSymmetric quantum wellsen_US
dc.subjectDensity matrix equationsen_US
dc.titleNonlinear optical response in intersubband transitions of a symmetric quantum well: Role of electron-electron interactionsen_US
dc.typeArticleen_US

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