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dc.contributor.authorÜnlü, Bekir Asilcan
dc.contributor.authorBilir, Gökhan
dc.contributor.authorYüksek, Mustafa
dc.contributor.authorKaratay, Ahmet
dc.contributor.authorYıldız, Elif Akhüseyin
dc.contributor.authorElmalı, Ayhan
dc.date.accessioned2022-11-23T07:42:12Z
dc.date.available2022-11-23T07:42:12Z
dc.date.issued2022en_US
dc.identifier.citationUnlu, B.A., Bilir, G., Yuksek, M., Karatay, A., Yildiz, E.A., Elmali, A. (2022). Mechanisms of nonlinear optical absorption in (GeO2)1-x–(PbF2)x (0.1 ≤ x ≤ 0.3) modified germanate glasses. Optical Materials, 131, art. no. 112758. https://doi.org/10.1016/j.optmat.2022.112758en_US
dc.identifier.urihttps://doi.org/10.1016/j.optmat.2022.112758
dc.identifier.urihttps://hdl.handle.net/20.500.12508/2315
dc.description.abstractThe structural, optical, and nonlinear absorption properties of (GeO2)1-x–(PbF2)x (0.1 ≤ x ≤ 0.3) glasses synthesized by conventional melting and quenching technique were investigated. Bandgap energies and Urbach energies were calculated by evaluating the linear absorption spectra. The increase in the PbF2 content resulted in 0.51 eV increase in bandgap energy and 0.28 eV decrease in Urbach energy. Z-scan experiment were performed to investigate nonlinear absorption properties, and a theoretical model including the contribution of one photon absorption, two photon absorption, excited state absorption, and saturable absorption to nonlinear absorption was considered in the evaluation of the experimental data. Although the highest effective nonlinear absorption coefficient was found with the highest PbF2 content due to the smallest bandgap energy, the highest downtrend in effective nonlinear absorption coefficients was also found for highest PbF2 content due to the smallest Urbach energy.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.optmat.2022.112758en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGermanate glassesen_US
dc.subjectNonlinear absorptionen_US
dc.subjectUrbach energyen_US
dc.subjectZ-scan techniqueen_US
dc.subject.classificationMaterials Science
dc.subject.classificationOptics
dc.subject.classificationChemistry - Nanoparticles - Z-Scan
dc.subject.otherOxide glasses
dc.subject.otherEnergy gap
dc.subject.otherExcited states
dc.subject.otherFluorine compounds
dc.subject.otherGermanium oxides
dc.subject.otherGlass
dc.subject.otherLead compounds
dc.subject.otherNonlinear optics
dc.subject.otherPhotons
dc.subject.otherTwo photon processes
dc.subject.otherBand gap energy
dc.subject.otherGermanate glass
dc.subject.otherNonlinear absorption coefficient
dc.subject.otherNonlinear absorption properties
dc.subject.otherNonlinear absorptions
dc.subject.otherNonlinear optical absorption
dc.subject.otherOptical absorption properties
dc.subject.otherSynthesised
dc.subject.otherUrbach energy
dc.subject.otherZ-scan technique
dc.subject.otherLight absorption
dc.titleMechanisms of nonlinear optical absorption in (GeO2)1-x–(PbF2)x (0.1 ≤ x ≤ 0.3) modified germanate glassesen_US
dc.typearticleen_US
dc.relation.journalOptical Materialsen_US
dc.contributor.departmentMühendislik ve Doğa Bilimleri Fakültesi -- Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.identifier.volume131en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.isteauthorYüksek, Mustafa
dc.relation.indexWeb of Science - Scopusen_US
dc.relation.indexWeb of Science Core Collection - Science Citation Index Expanded


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