Nonlinear optical properties of GaAs/AlGaAs asymmetric triple quantum wells designed for quantum cascade lasers: Effect of externally applied electric and magnetic fields

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dc.authoridAL, Emre Bahadir/0000-0003-4435-2879
dc.authoridTuzemen, Ahmet Turker/0000-0002-6120-6008
dc.authoridUngan, Fatih/0000-0003-3533-4150
dc.contributor.authorTuzemen, A. Turker
dc.contributor.authorDakhlaoui, H.
dc.contributor.authorMora-Ramos, M. E.
dc.contributor.authorAl, E. B.
dc.contributor.authorUngan, F.
dc.date.accessioned2024-10-26T18:08:10Z
dc.date.available2024-10-26T18:08:10Z
dc.date.issued2024
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractWe explore the impact of external fields on the absorption coefficients and relative refractive index changes in a quantum cascade laser profile-like heterostructure that consists of a triple asymmetric quantum well. Firstly, we solve numerically the time -independent Schro dinger equation by using the diagonalization method under the effective mass and parabolic band approaches, to obtain the energy levels and wavefunctions. Then, we evaluate the optical coefficients from the analytical expressions derived from the compact density matrix method. The obtained results put forth that the resonant peaks of optical coefficients shift to higher (lower) energies by increasing the value of the electric (magnetic) field. These results indicate that it would be possible to adjust the optical properties of these structures to the desired range with external fields. As a result, we hope that new optoelectronic devices based on asymmetric triple quantum wells can be developed using the features found here.
dc.description.sponsorshipMexican CONAHCYT [A1-S-8218]
dc.description.sponsorshipMEMR is grateful to Mexican CONAHCYT for support through Grant CB 2017-2018 No. A1-S-8218.
dc.identifier.doi10.1016/j.physb.2024.416223
dc.identifier.issn0921-4526
dc.identifier.issn1873-2135
dc.identifier.scopus2-s2.0-85196775292
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.physb.2024.416223
dc.identifier.urihttps://hdl.handle.net/20.500.12418/29852
dc.identifier.volume690
dc.identifier.wosWOS:001266320400001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysica B-Condensed Matter
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAsymmetric triple quantum wells
dc.subjectOptical absorption
dc.subjectRefractive index changes
dc.subjectElectric and magnetic fields
dc.titleNonlinear optical properties of GaAs/AlGaAs asymmetric triple quantum wells designed for quantum cascade lasers: Effect of externally applied electric and magnetic fields
dc.typeArticle

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