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Linear and nonlinear optical properties of Gd3+ doped zinc borotellurite glasses for all-optical switching applications

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TLDR
In this paper, a series of gadolinium zinc borotellurite glasses were synthesized by using conventional melt quenching technique and optical absorption spectra were recorded by UV-vis spectroscopy.
Abstract
In this work, linear and nonlinear optical parameters of zinc borotellurite glasses doped with Gd3+ have been studied for all-optical switching applications. A series of gadolinium zinc borotellurite glasses were synthesized by using conventional melt quenching technique. Optical absorption spectra were recorded by UV–vis spectroscopy. From the optical absorption spectra, the cut-off wavelength, optical band gap, Urbach energy and refractive index have been determined and are related to the structural changes in the glass systems. The nonlinear optical properties of Gd3+ doped glasses are investigated by using Z-scan technique. The values of nonlinear refractive index and absorption coefficient with closed and opened apertures of the Z-scan, respectively, were determined for proper utilization in nonlinear optical devices.

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Citations
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Journal ArticleDOI

Polarizability, optical basicity and electric susceptibility of Er 3+ doped silicate borotellurite glasses

TL;DR: In this paper, an erbium doped glass system was fabricated using the chemical composition {[(TeO 2 ] 0.7 (B 2 O 3 ) 0.3 ] 0.8 (SiO 2 ) 0.2 ] with x = 0.05 by melt-quenching method and the glasses were subjected to FTIR and XRD to study the glass structural changes and amorphous nature respectively.
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The influence of TiO2 on structural, physical and optical properties of B2O3 –TeO2 – Na2O – CaO glasses

TL;DR: In this paper, the changes in the structure of studied glasses were observed by using FTIR technique and it was found that glasses containing different structure units of borate and tellurite groups.
Journal ArticleDOI

Effect of the band gap and the defect states present within band gap on the non-linear optical absorption behaviour of yttrium aluminium iron garnets

TL;DR: In this paper, the effect of variation of band gap and electronic defect energy levels within the band gap on nonlinear optical absorption of 532nm (green) laser light by coral-like yttrium aluminium-iron garnet (YAIG, Y3Al5-xFexO12) ceramics prepared by solution combustion route is investigated using Z-scan technique.
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Structural influence of mixed transition metal ions on lithium bismuth borate glasses

TL;DR: In this paper, the compositional properties of bismuth borate glass with mixed transition metal oxides have been investigated for their physical properties using DSC/TG thermo-graphs, structural properties using IR absorption spectra in the mid-IR range and optical properties using UV-Vis-NIR spectroscopy.
References
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Journal ArticleDOI

Determination of nonlinear absorption and refraction by single Z-scan method

TL;DR: In this paper, a simplified Z-scan technique based on a study on the symmetric features of a typical Zscan curve was proposed, in which the contributions from the two-photon absorption (TPA) and the nonlinear refraction (NLR) were easily separated from a closed-aperture Z scan curve using this method.
Journal ArticleDOI

Optical, physical and structural studies of boro-zinc tellurite glasses

TL;DR: In this paper, the modification effect of the modifier ZnO on boro-tellurite glass, a series of glasses with compositions 50B 2 O 3 −(50− x )ZnO x TeO 2 have been prepared by conventional melt quenching technique.
Journal ArticleDOI

Systematic z-scan measurements of the third order nonlinearity of chalcogenide glasses

TL;DR: In this article, the authors reported measurements of the third order optical nonlinearity of 51 chalcogenide glasses in the near infrared and found that the measured values are an extremely good fit to the semi-empirical Miller's rule whilst the normalized real and imaginary parts are in satisfactory agreement with the scaling for indirect gap semiconductors reported by Dinu.
Journal ArticleDOI

IR and UV spectral studies for rare earths-doped tellurite glasses

TL;DR: In this article, the authors measured the infrared absorption spectra for pure TeO 2 glasses and doped with 10-wt% of different rare-earth oxides, La 2 O 3, CeO 2, Pr 2 O 4, Sm 2 O 5, Nd 2 O 6, and Yb 2 O 7.
Journal ArticleDOI

A study of nonlinear optical properties in Bi2O3–WO3–TeO2 glasses

TL;DR: In this article, a series of bismuth tungsten tellurite glasses were prepared and their densities, linear refractive indices and transmission spectra were measured from ultraviolet absorption edges.
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