Výsledky vyhledávání - "Ismail Kashif"

Akademický článek

Judd–Ofelt and luminescence study of Dysprosium-doped lithium borosilicate glasses for lasers and w-LEDs

Autor: Ismail Kashif, Asmaa Ratep

Publikováno v: Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 61, Iss 6, Pp 622-633 (2022)

The effect of Dysprosium concentration has been studied in glasses of the system 30 SiO2 + 30 Li2O + (40−x) B2O3 + x Dy2O3 glass system where x = 0.5, 1, 2.5, 5 and 10 mol%. FT-IR studies were performed to understand the functional groups of the ne

Externí odkaz: https://doaj.org/article/f08051e0964e4a5d834eb2bd19d90a5b

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Akademický článek

Influence of dysprosium oxide on physical and optical characteristics of zinc boro-tellurite glasses for optoelectronic device application

Autor: Ismail Kashif, A. Ratep

Publikováno v: Results in Optics, Vol 11, Iss , Pp 100401- (2023)

Glasses with compositions [(50-X) TeO2 − 20 B2O3 − 30 ZnO − x Dy2O3] where X = 0, 1, 2, 3, 4 and 5 mol% were synthesized by melt quenching method. X-ray diffraction (XRD) measurements confirmed the amorphous nature of the as-prepared glasses. U

Externí odkaz: https://doaj.org/article/7d51cd21b4de438788f056cadd2c8e49

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Judd–Ofelt and luminescence properties of Dysprosium and Terbium doped bismuth-borate glass system

Autor: Asmaa Ratep, Ismail Kashif

Publikováno v: Optical and Quantum Electronics. 55

Absorption spectra of Tb3+ ions from the ground state 7F6 revealed three absorption bands. In addition to the six absorption bands for Dy3+ ions observed in the visible and near-infrared ranges. The optical band gape of sample free from Dy2O3 (4 mol%

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f35cf77ce63920642897023d6d2ebe35
https://doi.org/10.1007/s11082-023-04725-9

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Effect of heat treatment on blue and green light emitted from europium doped bismuth germanium oxide glass

Autor: A. Ratep, Ismail Kashif

Glass samples with the composition 40 Bi2O3-60 GeO2-x Er2O3 are prepared using the melt quenching procedure. Fourier-transform infrared spectroscopy (FTIR), differential thermal analysis (DTA), Ultraviolet/Visible/Near-infrared (UV/Vis-NIR) absorptio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00e738ddc7c09f14da905f5b0ed7739b
https://doi.org/10.21203/rs.3.rs-1661936/v1

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