Thermo-optical spectroscopic investigation of new Nd3+-doped fluoro-aluminophosphate glasses

Gonçalves, T. S.; Santos, J.F.M. dos; Sciuti, Lucas F.; Catunda, T.; Camargo, Andréa Simone Stucchi de

doi:10.1016/j.jallcom.2017.10.152

Cited by 29 publications

(7 citation statements)

References 32 publications

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“…However, by further increasing the Nd 3+ concentration to 2% mol the intensity slightly decreases compared to PANCaFN3 (1.5%). This might be related to actual Nd 3+ concentration in the glass sample as reported by other group for Nd 3+ -doped fluoro-aluminophosphate glasses which the absorption with higher concentration of 8% mol was slight lower than 4% mol [29]. Based on this result, the optimum concentration of Nd 3+ is 1.5% to give the highest intensity.…”

Section: Absorption Spectrasupporting

confidence: 58%

“…From all absorption transition emission, there is one the most sensitive peak so-called hypersensitive transition for energy transition of 4 I 9/2 → 2 G 7/2 + 4 G 5/2 . It follows the selection rules |ΔJ| ≤ 2, |ΔL| ≤ 2, and ΔS = 0 [29]. This transition shows highest reduced matrix element ‖U λ ‖ 2 hence this transition is important to study their oscillator strength.…”

Section: Absorption Spectramentioning

confidence: 97%

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Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Rajagukguk

Situmorang

Fitrilawati

et al. 2019

Journal of Luminescence

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Nd 3+ doped fluorophosphate glasses (PANCaFN) with chemical composition of (50-x) P 2 O 5-12Na 2 O-8Al 2 O 3-10CaO-10KF-10CaF 2-xNd 2 O 3 (where x = 0, 0.5, 1.0, 1.5 and 2.0 mol%) have been successfully prepared by melt-quenching method and characterized by several techniques. The optical absorption measurements exhibited signature of Nd 3+ absorption bands in fluorophosphate glasses showed. The spectroscopic analysis have been carried out using Judd-Ofelt parameters and oscillator strength to determine radiative properties such as radiative transition probability (A R), branching ratio (β r), lifetime (τ), emission cross-section (σ e) and quantum efficiency (η). The highest emission intensity was found at 1060 nm for transition 4 F 3/2 → 4 I 13/2 under excitation wavelength of 582 nm for PANCaFN2. The emission cross section, branching ratio and lifetime were evaluated and showed 4.92 × 10 −20 cm 2, 0.7 and 200 μs, respectively. More importantly, the outstanding quantum efficiency of PANCaFN2 could reach to 98.92%. The addition of Nd 3+ ion into fluorophosphate glass could enhance the spectroscopic properties which could play as a potential candidate for solid state applications. Theoretical optical gain evaluation and experimental calculation confirmed that PANCaFN2 had the higher gain than other samples.

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Section: Absorption Spectrasupporting

confidence: 58%

Section: Absorption Spectramentioning

confidence: 97%

Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Rajagukguk

Situmorang

Fitrilawati

et al. 2019

Journal of Luminescence

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“…It decreases with an increase in Nd 3+ ions concentrations (increasing Nd 2 O 3 or decreasing Na 2 O). Similar results were also reported in previous works [16,20,44,45]. This lifetime reduction of electrons remaining in this state as the Nd 3+ concentration decreases may be attributed to multiphotons' transition to lower levels energy state or energy transfer processes to either other Nd 3+ ions or other ions in glass matrix.…”

Section: Lifetimesupporting

confidence: 90%

Effect of Nd₂O₃ and Na₂O concentration on physical and spectroscopic properties of TeO₂–Bi₂O₃–ZnO–Na₂O–Nd₂O₃ glasses

Marzuki

Pramuda²,

Fausta

2020

Mater. Res. Express

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Two series of tellurite glasses with molar compositions of (55TeO 2 -2Bi 2 O 3 -(41-x) ZnO-2Na 2 O-xNd 2 O 3 (x=0.5, 1.0, 1.5, 2.0 and 2.5) and 55TeO 2 -2Bi 2 O 3 -(41-x) ZnO-xNa 2 O-2Nd 2 O 3 (x=1.0, 2.0, 3.0, 4.0, 5.0) were fabricated using melt quenching technique. Based on the measured densities, refractive indices and absorption spectra, physical and spectroscopic properties of these two-glass series are evaluated and compared. Whereas substitution of ZnO by Nd 2 O 3 causes the values of density and refractive index increase, the substitution of ZnO by Na 2 O has been shown to impact the glass density and refractive index in the opposite manner. Molar volume of both series increases with an increase of either Nd 2 O 3 or Na 2 O concentrations. In this regard, a dynamical model explaining the density and molar volume was proposed. Additionally, Judd-Ofelt theory was applied in order to predict the physical and laser properties of the two glasses series as a function of glass compositions, i.e., Judd-Ofelt parameters Ω t (t=2, 4, 6), branching ratios (β), calculated lifetimes (τ), the emission to exited state absorption intensity ratio (A em /A ESA ) and spectroscopic quality χ=Ω 4 /Ω 6 . Equations to relate χ with branching ratios for laser transitions 4 F 3/2 to 4 I J' (with J′ =9/2, 11/2, 13/2 and 15/2) were also derived.

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“…Co-doping with nanostructures has been comprehensively investigated to enhance the luminescent emission of rare earth ion-doped glass matrices [17][18][19]. Besides efficient optical and spectroscopic properties, thermal properties of the composite glass, including thermal conductivity (κ), thermal diffusivity (D) and and the temperature coefficient of the optical path length (ds/dT), may be also modified by NPs co-doping with Ln 3+ ions [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Because of its high sensitivity, photothermal spectrometry has been extensively used for characterization of a variety of samples [26][27][28][29][30][31]. In the past few years, thermal lens spectroscopy (TLS) as well as beam deflection spectroscopy (BDS) have been applied to evaluate the thermo-optical properties of transparent and opaque materials, including optical glasses [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

et al. 2021

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In this work, time-resolved thermal lens and beam deflection methods were applied to determine the thermo-optical properties of Er3+ doped sulfophosphate glass in which different concentrations of Titanium dioxide (TiO2) nanoparticles (NPs) were embedded. Thermal diffusivity (D), thermal conductivity (κ), and the temperature coefficient of the optical path length (ds/dT) were determined as a function of NPs concentrations. Moreover, the growth of TiO2 NPs inside the amorphous glass matrix was evidenced by Transmission Electron Microscopy (TEM) images as well as through optical effects such as refractive index change of the glass. The outcomes indicated relatively high values for D and κ as well as a low ds/dT as required for most optical components used for laser media. The addition of TiO2 NPs with concentration of dopants up to 0.6 mol% improved the optical properties of the glass samples but did not affect its thermal properties. The results indicate that the enhanced optical and thermal performance of the proposed co-doped glass fits the quality standards for materials used in photonic devices.

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Thermo-optical spectroscopic investigation of new Nd3+-doped fluoro-aluminophosphate glasses

Cited by 29 publications

References 32 publications

Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Effect of Nd₂O₃ and Na₂O concentration on physical and spectroscopic properties of TeO₂–Bi₂O₃–ZnO–Na₂O–Nd₂O₃ glasses

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

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Thermo-optical spectroscopic investigation of new Nd3+-doped fluoro-aluminophosphate glasses

Cited by 29 publications

References 32 publications

Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application

Effect of Nd2O3 and Na2O concentration on physical and spectroscopic properties of TeO2–Bi2O3–ZnO–Na2O–Nd2O3 glasses

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

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Effect of Nd₂O₃ and Na₂O concentration on physical and spectroscopic properties of TeO₂–Bi₂O₃–ZnO–Na₂O–Nd₂O₃ glasses