Judd–Ofelt analysis and experimental spectroscopic study of erbium doped phosphate glasses

Lachheb, R.; Herrmann, Andreas; Assadi, Achraf Amir; Reiter, Jürgen; Körner, Jörg; Hein, Joachim; Rüssel, Christian; Elleuch, Riadh; Damak, Kamel

doi:10.1016/j.jlumin.2018.03.087

Cited by 32 publications

(4 citation statements)

References 70 publications

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“…A higher χ value is favourable point for enhancing the radiative transition process, leading to a stronger stimulated emission. The χ value for NFPE glass sample came highest 2.03, hence this glass can be suggested as favourable glass for strong stimulated emission [24,32,34]. The variation of Ω λ values and spectroscopic quality factor χ values were depicted in figure 6.…”

Section: Oscillator Strengths and Judd-ofelt Parametersmentioning

confidence: 87%

Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Surya Narayana Devara,

Dinesh,

Kumar

et al. 2023

Phys. Scr.

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Erbium activated fluorophosphate glasses were synthesized with conceived characteristic combination, 59.5NH4H2PO4+15ZnO+15BaF2+10X+0.5Er2O3(X = LiF, NaF, CaF2, SrF2, AlF3) by melt quenching route. Based on the mass densities, and refractive indices, other physical properties i.e., dielectric constant (ε), reflection losses, molar refraction, internuclear distance and molar volume are determined. XRD has confirmed the non-crystalline character of the prepared glass samples. FTIR, FT-Raman have been employed to study the structural characteristics. Various radiative properties have been inferred through optical absorption measurements by standard Judd–Ofelt procedure. By excitation at 379 nm, all the glass hosts doped with constant concentration 0.5 mole% of Er3+have yielded intense green emission peak due to the transition 4S3/2 → 4I15/2 at 545 nm. Characteristic emission transition 4I13/2 → 4I15/2 at wavelength 1.53 μm has been studied extensively. Particularly the parameters related to that transition namely, stimulated emission cross-sections (σ e) and optical gains (G) are calculated from emission spectra. Among all the fluorophosphate glasses, the one which has shown higher σ e, and G values is sodium fluorophosphate (NFPE) glass. It is recommended for optical fiber amplification and NIR laser usage.

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Section: Oscillator Strengths and Judd-ofelt Parametersmentioning

confidence: 87%

Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Surya Narayana Devara,

Dinesh,

Kumar

et al. 2023

Phys. Scr.

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“…Due to highest concentration of PbO in LBP4 sample, it was selected for doping of Erbium (Er 3+ ), Neodymium (Nd 3+ ) and Thulium (Tm 3+ ). Three different rare earth activated LBP samples were prepared using the melt quenching technique and the detailed composition of these glasses is shown in Table 5 Table [43,44]. Of all the peaks, 4 G 11/2 and 2 H 11/2 possess maximum intensity due to their hypersensitive nature.…”

Section: Rare Earth Doped Lbp Glassesmentioning

confidence: 99%

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Singh,

Singh

2024

Preprint

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To investigate the role of PbO as a former or a modifier and effect of its compositional variation on the physical, structural and optical properties, lithium lead borophosphate glasses were synthesized by melt quenching technique. For physical properties of the prepared glasses, density was measured by the Archimedes principle and density showed an increasing trend with increasing concentration of lead oxide. The structural analysis were performed through X-ray diffraction and Fourier transform infrared spectroscopy. Structural units due to PbO, P2 O5 and B2O3 were identified. Ultraviolet-visible absorption spec-troscopy was performed for optical properties and increase in the indirect band gap from 4.80 eV to 4.90 eV was observed. One glass sample was chosen for doping of erbium, neodymium, thulium and ytterbium, for study of their up-conversion properties. All the prepared samples were excited at 980 nm and ytterbium being a sensitizer helps in up-converting infrared light to visible light. As up-conversion is a host dependent process, up-1 conversion results suggested that the rare earth doped lithium lead borophosphate glasses are great host for up-conversion and these glasses can find applications in display devices and lasers.

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“…Furthermore, Louis et al [59] synthesized Tb-doped Gd 2 O 3 NP and obtained PL spectrum with four emission bands between 450 nm and 650 nm with the most intense peak at 545 nm [60], comparable to our results. The peak stimulated emission cross-section can be determined from the following expression using the fluorescence spectrum [63,64]:…”

Section: Optical and Photoluminescence (Pl) Propertiesmentioning

confidence: 99%

Green Emitting Rare Earth Gd₂O₃:Tb³⁺ Nanoparticles for Rapid Imaging of Latent Fingerprint

Maalej¹,

Qurashi²,

Bennour³

et al. 2021

Methods Appl. Fluoresc.

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A series of green emitting Gd 2 O 3 :Tb 3+ (Tb: 0%-10% mol) nanoparticles (NP) were synthesized using the hydrothermal method, then characterized and evaluated for latent fingerprint visualization. X-ray diffraction study (XRD) revealed a cubic structure of the nanoparticles and the total incorporation of the terbium in the Gd 2 O 3 matrix. Field Emission-Scanning Electron Microscopy (FESEM), Energy Dispersive x-ray Spectrometry (EDX) and Transmission Electron Microscopy (TEM) were used to study the morphology and the elementary composition of the NP. Photoluminescence (PL) studies showed strong green emission around 540 nm due to the transition 5 D 4 → 7 F 5 . The luminescence color of the synthesized NP was characterized by the CIE 1931 chromaticity diagram. The potential use of the NP powders for the visualization of latent fingerprint under UV irradiation was assessed on various substrates. The latent fingerprint images revealed by the Gd 2 O 3 :Tb 3+ NP powders are clear enough to extract and analyze reliable fingerprint features. The fingerprint quality was evaluated using three fingerprint quality assessment metrics and by extracting and measuring the visibility of the minutiae. The experimental results show very good quality images of the latent fingerprint acquired using the Gd 2 O 3 :Tb 3+ NP and yield good minutiae extraction.

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Judd–Ofelt analysis and experimental spectroscopic study of erbium doped phosphate glasses

Cited by 32 publications

References 70 publications

Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Green Emitting Rare Earth Gd₂O₃:Tb³⁺ Nanoparticles for Rapid Imaging of Latent Fingerprint

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Judd–Ofelt analysis and experimental spectroscopic study of erbium doped phosphate glasses

Cited by 32 publications

References 70 publications

Structural and spectroscopic studies of Er3+ in different fluorophosphate glasses for green laser and fibre amplifier operations

Structural and spectroscopic studies of Er3+ in different fluorophosphate glasses for green laser and fibre amplifier operations

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Green Emitting Rare Earth Gd2O3:Tb3+ Nanoparticles for Rapid Imaging of Latent Fingerprint

Contact Info

Product

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Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Structural and spectroscopic studies of Er³⁺ in different fluorophosphate glasses for green laser and fibre amplifier operations

Green Emitting Rare Earth Gd₂O₃:Tb³⁺ Nanoparticles for Rapid Imaging of Latent Fingerprint