Effect of Eu3+ ions on optical and fluorescence studies of Nd3+ ions doped zinc-lithium fluoroborate glasses

G, Umamaheswar; Devarajulu, G.; Rajesh, M.; Sushma, N. John; Gowthami, T.; Nagajyothi, P.C.; Ramasamy, V.; Raju, B. Deva Prasad

doi:10.1016/j.jlumin.2018.11.015

Cited by 5 publications

(5 citation statements)

References 51 publications

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“…table 3 reveals that the CaAlBBaNaBaFNaF (present) glass has greater Ω 2 values than some other host glasses. That shows more asymmetry of crystal field around Nd 3+ ions in present glasses when compared with other glasses (7,15,16) . Through absorption spectrum, experimental oscillator strengths (f exp ) of the f-f transitions of were found and are used in the work of J-O theory, in the current glasses the Ω 2 parameter has the greater value compare to Ω 2 and Ω 6 the emission intensity through the 4 F 3/2 level of Nd 3+ ions can be unique characterized, Ω 4 and Ω 6 intensity parameters are spectroscopic quality factors.…”

Section: Judd-ofelt Analysismentioning

confidence: 54%

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Gurav¹,

Devidas²,

Dinkar³

et al. 2023

IJST

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Background/Objectives: 23CaO + 10Al 2 O 3 + (51 − x)B 2 O 3 + 6BaF 2 + 10Na 2 O + xNd 2 O 3 glasses were designed for understanding the optical properties of the emission, such as absorption, lifetime, and quantum efficiencies (QEs) of the glasses. Methods: The glasses were synthesized using the conventional melt-quenching technique at 1150 0 C. The amorphous nature of the samples was confirmed by x-ray diffraction studies. Findings: The radiative QE (η) obtained from the radiative lifetime by Judd-Ofelt analysis, as well as directly measured lifetime using a 582 nm were measured and compared with other reported literature. Novelty: The present work focuses on the replacement of fluorine ions to their alkali content and studied their stimulated emission cross section. The stimulated emission cross-section shows σ emi =25.3x10 -21 cm 2 and σ emi =18.5x10 -21 cm 2 for oxide (R1) and oxy-fluoride glasses (F2) with 0.5mol% Nd 2 0 3 content respectively. The stimulated emission cross section σ emi =29.9x10 -21 cm 2 and σ emi =32.5x10 -21 cm 2 for oxide (F1) and oxy-fluoride (A3) glasses with 1.0mol% Nd 2 0 3 content respectively. The data clearly suggests that addition of higher fluorine content in the glasses are suitable for NIR solid state device applications.

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Section: Judd-ofelt Analysismentioning

confidence: 54%

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Gurav¹,

Devidas²,

Dinkar³

et al. 2023

IJST

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“…Density explains the structural softness or compactness. The immersion liquid used for the experiment is xylene (q = 0.865 g/cm 3 ). The Contech Analytical Balance is programmed to display density values directly using the relation:…”

Section: Physical Propertiesmentioning

confidence: 99%

“…The studies have revealed that, with the increase in rareearth content in the amorphous network, the spacing between the same decreases, which increases the magnitude of quenching in the properties due to ion clustering [3,[27][28][29][30]. Quenching occurs due to energy transfer between rare-earth ions in various network sites as the ion concentration increases.…”

Section: Physical Propertiesmentioning

confidence: 99%

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Physical, optical, thermoanalytical, and radiation response study of Eu2O3-doped zinc fluoro-telluroborate glasses

et al. 2023

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In the present study, Eu3+-doped zinc fluoro-telluroborate transparent glasses were prepared by the conventional melt−quench technique. Their density and refractive index values were measured, and using these values, different physical parameters (number density, oxygen packing density, no. of bonds/vol, etc.) were calculated and analysed. The XRD pattern displayed a disordered atomic arrangement in the glass network. The EDS spectra proved the purity of the samples exhibiting only those elements used during the synthesis. The good solubility of Eu3+ ions in zinc fluoro-telluroborate glasses was analysed through fine absorption peaks in the UV−Vis−NIR range. The absorption intensities increased in all samples up to 3.0 mol% of Eu3+-doping concentration. The stabilities of the samples, such as ∆T ~ (144–156) °C and Hr ~ 2.33–4.00, calculated using characteristic temperatures (Tg, Tx, Tc, Tm) from DSC studies exhibited their promising candidature in a high-temperature environment. The Eu7 (Eu3+ with 3.0 mol%) glass confirmed better attenuation properties (LAC, Zeff, HVL, MFP) compared to other composition (0–2.5 mol%) glasses.

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“…Regardless of the limited laser source in our lab, the choice of this refractive index can compensate the refractive index difference arising from material dispersion, i.e., higher refractive index located at wavelength shorter than 650 nm and lower refractive index at longer wavelength. Perhaps for this reason, most works on Judd-Ofelt analysis published nowadays is based on such a single refractive index [27][28][29][30]. There are only few papers reporting Judd-Ofelt calculation by taking into account material dispersion [31].…”

Section: Judd-ofelt Analysismentioning

confidence: 99%

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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Effect of Eu3+ ions on optical and fluorescence studies of Nd3+ ions doped zinc-lithium fluoroborate glasses

Cited by 5 publications

References 51 publications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Physical, optical, thermoanalytical, and radiation response study of Eu2O3-doped zinc fluoro-telluroborate glasses

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

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Effect of Eu3+ ions on optical and fluorescence studies of Nd3+ ions doped zinc-lithium fluoroborate glasses

Cited by 5 publications

References 51 publications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Physical, optical, thermoanalytical, and radiation response study of Eu2O3-doped zinc fluoro-telluroborate glasses

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

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