Mixed alkali effect and samarium ions effectiveness on the structural, optical and non-linear optical properties of borate glass

Ibrahim, Abdallah; Hammad, Ahmed H.; Abdelghany, A.M.; Rabie, G.O.

doi:10.1016/j.jnoncrysol.2018.05.015

Cited by 77 publications

(8 citation statements)

References 45 publications

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“…Investigations using FT-IR Figure 1 shows the infrared FT-IR spectrum of a glass system. FT-IR spectra of each glass sample show broad peaks due to the overlapping of various absorption bands [10,[46][47][48]. Therefore, it is necessary to characterize each absorption band and to know the deconvolution parameters (relative area A and band position C).…”

Section: Resultsmentioning

confidence: 99%

Effect of CeO2 /Er2O3 co-doping on spectroscopic properties of zinc fluoroborate glasses

Abouelmaaref¹,

Al-Hosiny²,

Alyousef³

et al. 2022

Phys. Scr.

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The glass system 75B2O3 - 4.5ZnF2 – 0.5 Er2O3–(20-x) ZnO- x CeO2, x = (0 ≤ x ≤ 1 mol. %) in this article was produced using the melt-quenching technique. Utilizing FT-IR techniques, the structural specifics of manufactured glasses are studied. The N_4 and N_3 fractions will be used to explore the transformation in the glass system that has been obtained. The BO3 and BO4 units coexisted in the glass composition, based on FT-IR spectra. Cerium ions appear to change trigonal BO3 units into tetrahedral BO4 units, according to preliminary FT-IR studies. The Judd-Ofelt theory is used to calculate the optical properties of the current glass that is co-doped with Er/Ce. Energy levels and line strengths of the Er3+ ion are evaluated. The current work additionally provides optical gains, emission/absorption cross-sections, and optical intensity data. The compound containing 0.6 mol% provided the greatest values for optical parameters like intensity parameters and optical gain compared to all other concentrations employed in this study.

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Section: Resultsmentioning

confidence: 99%

Effect of CeO2 /Er2O3 co-doping on spectroscopic properties of zinc fluoroborate glasses

Abouelmaaref¹,

Al-Hosiny²,

Alyousef³

et al. 2022

Phys. Scr.

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“…The spectra mainly consist of three dominant absorption bands often present in alkali-borate glasses [37]. The high wavenumber band (1600-1165 cm − 1 ) is frequently assigned to asymmetric stretching vibration mode of B-O within the triangular (BO 3 ) structural unit [45]. The nearby band spanning the range (1165-760 cm − 1 ) most likely originates from B-O stretching vibration within the more stable tetrahedral (BO 4 ) structural groups [46].…”

Section: Infrared Spectroscopymentioning

confidence: 99%

Multiple optical features in binary-transition-metal borate glasses

et al. 2021

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Glasses doped with transition metal (TM) ions exhibit rich optical transitions spanning the entire ultraviolet, visible, and infrared spectral regimes. Here we utilize the melt-quenching techniques to synthesis binary-TM-doped borate glasses of composition xCuO-(75-x)B 2 O 3 -24.7Li 2 O-0.3Cr 2 O 3 , with x = 0, 0.2, 1.0 and 2.0 mol %. We identify several optical transitions from Cr 3+ , Cr 6+ , and Cu 2+ ions, the latter manifests at longer wavelengths and gains higher intensity with Cu additives. Despite Cr concentration being xed, the Cr 6+ peaks are quenched and Cr 3+ signals are barely attenuated. This behavior rules out possible phase separation and suggests non-trivial interplay between the two TM ions and ligand, as supported by probing their oxidation states from electron spin resonance. The crystal eld and Racah parameters followed an opposite behavior, while the optical band gap is reduced upon doping. These changes are correlated with structural modi cations introduced by Cu additives, where we anticipate homogenous and preferential proximity of Cu-Cr ions within the network.

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“…Doping using Yb 3+ enhances absorption pumping near ⁓ 980 nm and energy transfer efficiency between Er 3+ and Yb 3+ , allowing for centimeter-long laser beams at low Er 3+ contents [26]. These glasses' optical, electrical, chemical, and fluorescence characteristics are predominantly improved by adding certain oxides, such as Al 2 O 3 , PbO, and Na 2 O, with rare-earth ions [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

et al. 2022

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Herein, this study intends to reveal the impact of gamma irradiation on the structural, linear, and nonlinear optical characteristics of 47P2O5−23Na2O−6Al2O3−22PbO−0.5Er2O3−1.5Yb2O3 glass. The Er/Yb-doped lead phosphate glass samples were produced using the traditional melt quenching procedure and then treated to different doses of gamma irradiation (0, 20, 50, and 100) kGy. The amorphous phase structure of the Er/Yb-doped lead phosphate glass samples was verified through XRD patterns. Also, the shift of the FTIR peaks due to the change in bond angles, and the change in the bond length of the P–O–P bridges means the glass network stability against radiation. With increasing irradiation dosages, the energy gap dropped from 4.11 eV to 3.42 eV and then enhanced to 3.48 at 100 kGy. At the same time, the Urbach energy enhanced from 10.23 eV to 37.03 eV. The oscillator energy Eo was found between 1.55 and 1.62 eV. Also, the dispersion energy Ed varied between 2.11 eV at 100 kGy and 2.71 eV at the dose of 50 kGy. The percentage of free carrier ions to effective mass (N/m*) is in the range (4.82–8.66) × 1047 cm3/g. Besides, the lattice dielectric constant ($${\varepsilon }_{l}$$ ε l ) increased from 5.54 to 6.63 as the gamma dosages increased. Furthermore, increasing gamma doses up to 50 kGy promotes susceptibility, which subsequently declines at 100 kGy, suggesting that increasing gamma doses over 50 kGy weakens polarizability potential. While the increasing gamma doses up to 50 kGy reduces the nonlinear refractive index and then improves at 100 kGy. Overall, the nonlinear and linear research revealed that Er/Yb lead phosphate glass is being used as a promising material for gain media and optical amplifiers.

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Mixed alkali effect and samarium ions effectiveness on the structural, optical and non-linear optical properties of borate glass

Cited by 77 publications

References 45 publications

Effect of CeO2 /Er2O3 co-doping on spectroscopic properties of zinc fluoroborate glasses

Effect of CeO2 /Er2O3 co-doping on spectroscopic properties of zinc fluoroborate glasses

Multiple optical features in binary-transition-metal borate glasses

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

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