Concentration dependence of spectroscopic properties and energy transfer analysis in Nd 3+  doped bismuth silicate glasses

Tian, Cong; Chen, Xi; Shuibao, YU

doi:10.1016/j.solidstatesciences.2015.08.008

Cited by 52 publications

(8 citation statements)

References 38 publications

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“…It is well known that the glasses with higher T g are more desirable due to overcoming the change in the temperature (resist thermal damage). T g for studied glasses is higher than many studied previously glasses [32][33][34][35][36]. Stability of glasses against crystallization can be measured as ∆T = T x -T g .…”

Section: Resultsmentioning

confidence: 75%

Ultrasonic and Thermal properties of Bismuth borotellurite glasses doped with NdCl3

El-Gazery

Ali²,

El-Mallawany

2018

Egypt. J. Chem.

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B ISMUTH borotellurite glass systems in the form of 65B 2 O 3-12.5TeO 2-12.5Bi 2 O 3-(10-x) Na 2 O-xNdCl 3 , x=0, 1, 2, 5, and 10 mole % were melted by traditional method and their amorphous nature were examined by using XRD technique. Densities of the prepared glasses were measured and molar volumes were calculated. The ultrasonic pulse-echo technique at 4 MHz nominal frequency was used to calculate ultrasonic velocities (both of Longitudinal and Shear together). Many of known elastic moduli, such as, longitudinal (L), shear (G), Young (E) and bulk (K) moduli were obtained by using the measured density and ultrasonic velocities. Also Poisson's ratio (σ), the softening temperature (T S), Debye temperature (θ D), and microhardness (H) were calculated. The glass transition (T g) temperature, the crystallization temperature (T c) and the glass satbility parameters (K SP) could be calculated from the Differential thermal analysis (DTA) that has been carried out in the temperature range from 300 to about 1100 o K for all prepared samples. It is noticed that the mechanical properties (elastic moduli and hardness) of the prepared glass increase with increase of NdCl 3 %. Also, the softening temperature, the glass transition temperature and stability increase with the increase of NdCl 3 % content.

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Section: Resultsmentioning

confidence: 75%

Ultrasonic and Thermal properties of Bismuth borotellurite glasses doped with NdCl3

El-Gazery

Ali²,

El-Mallawany

2018

Egypt. J. Chem.

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“…( 7) for the 4 F3/2 level for the NdS, NdA, and NdBi glasses were 2.40, 2.33, and 2.37 ms, respectively. The quantum efficiency (𝜂) for the 4 F3/2 level has also been computed for the present glass matrix [23][24] using the following equation:…”

Section: Discussionmentioning

confidence: 99%

Influence of modifier oxides on spectroscopic features of Nd2O3 doped PbO-Ro2O3–WO3–B2O3 glasses (with Ro2O3 = Sb2O3, Al2O3, and Bi2O3)

Prasad¹,

Siva²,

Neeraja³

et al. 2020

Journal of Luminescence

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“…These characteristics in turn depend on the stimulated emission cross section, band width, coupling efficiency of the pump source and lifetime of the excited level. 13,14 Of all the optical glasses, phosphate glasses have been extensively studied due to their exclusive advantages such as low melting point, low dispersion, low softening temperatures, high mechanical, thermal and electrochemical stability, high refractive index, high ionic conductivity, high solubility of Ln 3+ ions resulting in less clustering, extensive transparency in the ultraviolet-infrared (UV-IR) spectral region, etc. 15,16 Nevertheless, the hygroscopic nature and poor chemical durability of these glasses are the drawbacks for their practical application as laser gain media.…”

Section: Introductionmentioning

confidence: 99%

Optical Absorption and NIR Photoluminescence of Nd3+-Activated Strontium Phosphate Glasses

Prasad¹,

Vijaya

Babu³

et al. 2020

Journal of Elec Materi

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Strontium phosphate glasses with various concentrations of Nd 2 O 3 have been prepared by melt quenching method. Absorption and photoluminescence spectra and lifetime measurements have been carried out to obtain the optical properties of these glasses. From the absorption spectrum, intensity and radiative parameters have been evaluated using Judd-Ofelt analysis. Nearinfrared photoluminescence spectra consist of three bands centered at 875 nm, 1056 nm and 1327 nm, among which the highest intensity has been noticed for the band at 1056 nm that corresponds to the 4 F 3/2 fi 4 F 11/2 transition of Nd 3+ ion. Laser parameters such as branching ratio, band width, stimulated emission cross section and gain bandwidth for the 4 F 3/2 fi 4 F 11/2 transition are found to be 0.52, 28 nm, 2.31 9 10 À20 cm 2 and 6.5 9 10 À26 cm 3 , respectively. Decay curves of the 4 F 3/2 level of Nd 3+ ions exhibit a single exponential nature at lower concentrations, while they become non-exponential at higher concentrations (‡ 0.1 mol.%) due to non-radiative energy transfer processes. This feature is also associated with shortening of lifetime from 307 ls to 82 ls when the Nd 3+ ion concentration increases from 0.1 mol.% to 4.0 mol.%. The results have been compared with those of barium and magnesium phosphate glasses and commercial glasses. The results suggest that these glasses have potential applications as infrared laser materials at 1.05 lm.

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Concentration dependence of spectroscopic properties and energy transfer analysis in Nd 3+ doped bismuth silicate glasses

Cited by 52 publications

References 38 publications

Ultrasonic and Thermal properties of Bismuth borotellurite glasses doped with NdCl3

Ultrasonic and Thermal properties of Bismuth borotellurite glasses doped with NdCl3

Influence of modifier oxides on spectroscopic features of Nd2O3 doped PbO-Ro2O3–WO3–B2O3 glasses (with Ro2O3 = Sb2O3, Al2O3, and Bi2O3)

Optical Absorption and NIR Photoluminescence of Nd3+-Activated Strontium Phosphate Glasses

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