dc.contributor.author | Ünlü, Bekir Asilcan | |
dc.contributor.author | Karatay, Ahmet | |
dc.contributor.author | Yıldız, Elif Akhüseyin | |
dc.contributor.author | Yola, Mehmet Lütfi | |
dc.contributor.author | Yüksek, Mustafa | |
dc.contributor.author | Atar, Necip | |
dc.contributor.author | Elmalı, Ayhan | |
dc.date.accessioned | 2022-01-13T10:32:53Z | |
dc.date.available | 2022-01-13T10:32:53Z | |
dc.date.issued | 2021 | en_US |
dc.identifier.citation | Unlu, B.A., Karatay, A., Yildiz, E.A., Yola, M.L., Yuksek, M., Atar, N., Elmali, A. (2021) . Defect assisted optical limiting performance of hexagonal boron nitride nanosheets in aqueous suspension and PMMA nanocomposite films. Optical Materials, 121, art. no. 111630.
https://doi.org/10.1016/j.optmat.2021.111630 | en_US |
dc.identifier.uri | https://doi.org/10.1016/j.optmat.2021.111630 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12508/2122 | |
dc.description.abstract | Defect-assisted nonlinear absorption (NLA) and optical limiting (OL) performance of hexagonal boron nitride nanosheets (h-BNNS) in aqueous suspension and in polymethyl methacrylate matrix (PMMA) as nanocomposite films were studied using open-aperture Z-scan method. To evaluate the transmission in open-aperture Z-scan data, a theoretical model accounting one photon absorption (OPA), two photon absorption (TPA), free carrier absorption (FCA) and saturation of each process was considered. Defect-assisted NLA coefficients and saturation intensity thresholds were extracted from the fitting of the experimental results for 532 and 1064 nm pulse wavelengths. Strong defect-assisted NLA response of h-BNNS was observed while NLA at 532 nm was considerably stronger. This is attributed to the excitation of a greater number of defect states over a wider energy range. Our findings showed that h-BNNS/PMMA nanocomposite films feature highly required properties in OL applications and can function in OL applications in a wide spectral range (-200-1064 nm). | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.isversionof | 10.1016/j.optmat.2021.111630 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Boron nitride | en_US |
dc.subject | Nanosheet | en_US |
dc.subject | Nonlinear absorption | en_US |
dc.subject | Optical limiting | en_US |
dc.subject | Photoluminescence | en_US |
dc.subject.classification | Materials Science | |
dc.subject.classification | Optics | |
dc.subject.classification | Boron Nitrides | |
dc.subject.classification | Hexagons | |
dc.subject.classification | Nanosheets | |
dc.subject.other | Boron nitride | |
dc.subject.other | Defects | |
dc.subject.other | Film preparation | |
dc.subject.other | III-V semiconductors | |
dc.subject.other | Luminescence of organic solids | |
dc.subject.other | Nanocomposite films | |
dc.subject.other | Nanocomposites | |
dc.subject.other | Nanosheets | |
dc.subject.other | Nitrides | |
dc.subject.other | Nonlinear optics | |
dc.subject.other | Polymethyl methacrylates | |
dc.subject.other | Suspensions (fluids) | |
dc.subject.other | Two photon processes | |
dc.subject.other | 1064 nm | |
dc.subject.other | Aqueous suspensions | |
dc.subject.other | Boron nitride nanosheets | |
dc.subject.other | Methacrylate matrix | |
dc.subject.other | Non-linear optical | |
dc.subject.other | Nonlinear absorptions | |
dc.subject.other | Open aperture Z-scan method | |
dc.subject.other | Optical limiting | |
dc.subject.other | Optical limiting applications | |
dc.subject.other | Optical limiting performance | |
dc.subject.other | Photons | |
dc.subject.other | Quantum emission | |
dc.subject.other | Monolayer | |
dc.subject.other | Luminescence | |
dc.subject.other | Vacancies | |
dc.title | Defect assisted optical limiting performance of hexagonal boron nitride nanosheets in aqueous suspension and PMMA nanocomposite films | en_US |
dc.type | article | en_US |
dc.relation.journal | Optical Materials | en_US |
dc.contributor.department | Mühendislik ve Doğa Bilimleri Fakültesi -- Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.identifier.volume | 121 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.contributor.isteauthor | Yüksek, Mustafa | |
dc.relation.index | Web of Science - Scopus | en_US |
dc.relation.index | Web of Science Core Collection - Science Citation Index Expanded | |