Theoretical investigation of intersubband nonlinear optical rectification in AlxlGa1-xlAs/GaAs/AlxrGa1-xrAs asymmetric rectangular quantum wells

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dc.contributor.authorKarabulut, Ibrahim
dc.contributor.authorAtav, Uelfet
dc.contributor.authorSafak, Haluk
dc.contributor.authorTomak, Mehmet
dc.date.accessioned2020-03-26T17:18:39Z
dc.date.available2020-03-26T17:18:39Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study, a theoretical investigation of intersubband nonlinear optical rectification in Alx1Ga1-x1As/ GaAs/AlxrGa1-xrAs asymmetric rectangular quantum wells is presented. The electronic states in the asymmetric rectangular quantum well are described within the framework of the envelope function approach including the effects of band nonparabolicity and the effective mass mismatch. The nonlinear optical rectification is calculated using the density matrix formalism. It is found that the nonlinear optical rectification in the asymmetric rectangular quantum well depends sensitively on the parameters such as the width and the asymmetry of the potential well. The adjustable parameters allow for tuning of the asymmetric rectangular quantum well system to the desired wavelength while retaining a large optical rectification coefficient. This gives a new degree of freedom in various device applications based on nonlinear optical properties. Band nonparabolicity is found to significantly influence both electronic states and nonlinear optical rectification. Moreover the resulting optical rectification coefficient is much larger than the ones for bulk GaAs and some other theoretical studies in literature. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_US
dc.identifier.doi10.1002/pssb.200642565en_US
dc.identifier.endpage3324en_US
dc.identifier.issn0370-1972en_US
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage3313en_US
dc.identifier.urihttps://dx.doi.org/10.1002/pssb.200642565
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21707
dc.identifier.volume244en_US
dc.identifier.wosWOS:000249524600030en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWILEY-V C H VERLAG GMBHen_US
dc.relation.ispartofPHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleTheoretical investigation of intersubband nonlinear optical rectification in AlxlGa1-xlAs/GaAs/AlxrGa1-xrAs asymmetric rectangular quantum wellsen_US
dc.typeArticleen_US

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