Spectroscopic investigations of near-infrared emission from Nd3+-doped zinc-phosphate glasses: Judd-Ofelt evaluation

Mahraz, Zahra Ashur Said; Sazali, E.S.; Sahar, Md. Rahim; Amran, Nur Ulfah; Yaacob, Syariffah Nurathirah Syed; Aziz, Siti Maisarah; Mawlud, Saman Q.; Noor, Fatimah Mohd.; Harun, Aizul Nahar

doi:10.1016/j.jnoncrysol.2018.05.013

Cited by 43 publications

(5 citation statements)

References 56 publications

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“…The Ω2 parameter is correlated with degree of covalency between rare earth ions and coordinating ligand in chemical bonds. The Ω6 and Ω4 parameters are related to the rigidity and viscosity of the glass matrix, respectively [56]. The higher value of Ω2 the less ionic the glass and more asymmetry [19].…”

Section: Judd-offelt Analysismentioning

confidence: 99%

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Ahmed,

Mawlud

2023

Preprint

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Er+ 3doped lead-bismuth tellurite glasses with the composition (75-x) TeO2 − 15 PbO – 10 Bi2O3 - xEr2O3 where (x = 0, 0.5, 1, 1.5, 2 and 2.5 mole%) were synthesized by using melt quenching technique. The influence of Er3+ doping was evaluated through physical and optical properties. The non-crystalline nature of the samples was analyzed by XRD. The density of the samples was increased from 6.387 to 6.528 g.cm− 3. The absorption spectra show eight transition bands corresponding to the transitions from 4I15/2 to 4I13/2, 4I11/2, 4I9/2, 4F9/2, 4S3/2, 4H11/2, 4F7/2 and 4F5/2, respectively. The experimental and calculated oscillator strengths were calculated based on the Judd-Ofelt theory. The intensity parameters follow the trend Ω2 > Ω6 > Ω4. Three emission bands were observed from the fluorescence spectra. The green transition 4S3/2 →4I15/2 is the strongest among other transitions. The color coordinates were determined by using CIE 1931 chromaticity diagram. The highest quantum efficiency was 95.11% for the transition 4S3/2 →4I15/2. The results suggest that the TPBE2 glass is a great promising candidate for photonic applications and fabrication of laser optical devices.

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Section: Judd-offelt Analysismentioning

confidence: 99%

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Ahmed,

Mawlud

2023

Preprint

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“…The RMSE measures how well the data fit the model. In addition, we compared the (Ω 2 , Ω 4 , Ω 6 ) calculations in our matrices to those in the scientific literature (Table 8) [8,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]. The molecular nature of metal-ligand bonds has also been connected to the J-O parameters.…”

Section: Samarium (Sm 3+ )mentioning

confidence: 99%

Judd–Ofelt Analysis and Spectroscopy Study of Tellurite Glasses Doped with Rare-Earth (Nd3+, Sm3+, Dy3+, and Er3+)

Boudchicha,

Iezid,

Goumeidane

et al. 2023

Materials

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A series of glasses based on (80-y) TeO2-20 BiCl3-y RE2O3 (y = 0, 0.6 mol%; RE = Nd, Sm, Dy, and Er) were prepared. The thermal stability of the glass was determined by differential scanning calorimetry (DSC). The density and optical energy values of the prepared glass increased in the order of Sm2O3, Nd2O3, Dy2O3, and Er2O3. In addition, the glass doped with Er2O3 had the highest refractive index values compared to the other samples. Subsequently, Judd–Ofelt parameters (Ω2, Ω4, and Ω6) were obtained for the family of RE3+ trivalent rare-earth ions introduced as dopants in a tellurite glass. These parameters were calculated from the absorption spectra for each RE3+. The structures were studied by Raman spectroscopy deconvolution, which determined that TeO4, TeO3, TeO3+1, BiO6, and BiCl6 units had formed. In addition, the structural changes in the glass are related to the intensity ratio of TeO4/TeO3, depending on the type of rare-earth. For the optics and Judd–Ofelt parameters, the ray spectroscopy results of the prepared glass show that it is a good candidate for nonlinear optics fibers, a solid laser material.

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“…In addition, it can result in a significant decrease in the phonon energy, minimizing the nonradiative processes when doped with rare‐earth ions (RE) . RE‐doped glasses are attractive for optical applications such as lasers and telecommunications devices …”

Section: Introductionmentioning

confidence: 99%

“…11,12 RE-doped glasses are attractive for optical applications such as lasers 13 and telecommunications devices. 14,15 Recently, structural changes in phosphate glasses has been reported by the addition of WO 3 , 16,17 Ta 2 O 5 , 18,19 V 2 O 5 , 20 TiO 2 , [21][22][23] and Nb 2 O 5 1,5,24 . In fact, transition metal containing oxide glasses exhibit improved optical properties for photonic applications when compared with pure oxide glass formers.…”

mentioning

confidence: 99%

Transparent glass and glass‐ceramic in the binary system NaPO₃‐Ta₂O₅

et al. 2019

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Transparent and homogeneous tantalum phosphate glasses were prepared in the binary system (100‐x)NaPO3‐xTa2O5 with x varying from 10 to 50 mol%. Thermal, structural, and optical properties, as well as crystallization mechanisms, were investigated by thermal analysis, X‐ray diffraction, Fourier‐transform infrared spectroscopy (FTIR) and Raman spectroscopies, optical absorption, transmission electron microscopy in terms of Ta2O5 content. FTIR and Raman results support the tantalum insertion in the phosphate chains with [TaO6] polyhedra cross‐linking the phosphate units. At higher Ta2O5 content, [TaO6] clusters are formed and connected to the phosphate network by P‐O‐Ta bonds. This structural evolution is in good agreement with the thermal features measured by differential scanning calorimetry (DSC) with a strong increase of the Tg temperatures up to 920°C, high thermal stability against crystallization for low Ta2O5 content and increasing of crystallization tendency for the most Ta‐concentrated samples. Besides, due to the progressive insertion of [TaO6] units, the precipitation of Na2Ta8O21 perovskite‐like phase was identified in the sample with 50 mol% of Ta2O5. The optimal heat treatment conditions were identified using DSC measurements and a transparent glass‐ceramic from 50NaPO3 to 50Ta2O5 composition was prepared. The obtaines glass‐ceramic has great potential for optical applications, such as host for rare‐earth ions, nonlinear optical materials, and ferroelectric domain.

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Spectroscopic investigations of near-infrared emission from Nd3+-doped zinc-phosphate glasses: Judd-Ofelt evaluation

Cited by 43 publications

References 56 publications

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Judd–Ofelt Analysis and Spectroscopy Study of Tellurite Glasses Doped with Rare-Earth (Nd3+, Sm3+, Dy3+, and Er3+)

Transparent glass and glass‐ceramic in the binary system NaPO₃‐Ta₂O₅

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Spectroscopic investigations of near-infrared emission from Nd3+-doped zinc-phosphate glasses: Judd-Ofelt evaluation

Cited by 43 publications

References 56 publications

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Judd–Ofelt Analysis and Spectroscopy Study of Tellurite Glasses Doped with Rare-Earth (Nd3+, Sm3+, Dy3+, and Er3+)

Transparent glass and glass‐ceramic in the binary system NaPO3‐Ta2O5

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Transparent glass and glass‐ceramic in the binary system NaPO₃‐Ta₂O₅