The influence of the Sc3+ dopant on the transmittance of (Y, Er)3Al5O12 ceramics

Dobretsova, Elena; Zhmykhov, Vadim; Kuznetsov, S. V.; Chikulina, I.S.; Никова, М.С.; Тарала, В.А.; Vakalov, D.S.; Khmelnitsky, R. A.; Pynenkov, A. A.; Нищев, К. Н.; Tsvetkov, Vladimir

doi:10.1039/d1dt02419a

Cited by 9 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• The eighth step: The fluorescence line strength (S f ) for the emitted wavelength (2 µm) is calculated by replacing the values of the density parameters (Ω t ) obtained from the fifth step with the numerical values of |U (t) | In the following equation (23)(24)(25) :…”

Section: Methodsmentioning

confidence: 99%

Studying the Absorption and Fluorescence Parameters of Ho: YAP Laser Using the Judd-Oflet Model

Hassan,

Hasheem,

AL-Ruwashdi

2024

IJST

View full text Add to dashboard Cite

Objectives: Study and find the absorption and fluorescence parameters for the Ho: YAP laser crystal, such as branching ratios, intensity parameters, oscillation strength, fluorescence line strength, absorption line strength, the spontaneous emission factor, the time life of the upper irritated level, the emission cross-section, and the absorption cross-section and prove that this laser is Ho: YAP laser. Method: Absorption and fluorescence parameters are calculated by employing the equations of the Judd-Oflet model and using the absorption coefficient to calculate the area under the curve. Findings: The properties of the compelling medium were calculated theoretically using the Judd-Oflet Model. These include branching ratios β2 = 0.27, β3 = 0.72, intensity parameters Ω2=1.41*10-20 cm2 Ω4=2.91*10-20 cm2, Ω6= 1.72*10-20 cm2, oscillation strength 1.48*10-6, fluorescence line strength Sf1 =0, Sf2 = 3.24*10-23, Sf3 = 4.9*10-23, absorption line strength 3.2439*10-23, the spontaneous emission factor 167 s-1, and the time life of the upper irritated level 5.99 ms, the emission cross-2.239*10-18 cm2, the absorption cross-section 0.92*10-20 cm2, these values are evidence that the active medium to be studied is Ho: YAP. Also, the ratio of the probability of spontaneous emission to stimulated emission was calculated, which is much less than one, which indicates that the laser system operates in this medium, and a laser is emitted through it. Novelty: In this article, we succeeded in using a mathematical model to calculate the properties of absorption and fluorescence, which are of great importance in laser work, instead of experimental work that could expose the crystal to damage and also require money, effort, and time. Keywords: Judd-Oflet Model, Ho: YAP laser, Absorption Parameters, Fluorescence Parameters, absorption coefficient, intensity parameters

show abstract

Section: Methodsmentioning

confidence: 99%

Studying the Absorption and Fluorescence Parameters of Ho: YAP Laser Using the Judd-Oflet Model

Hassan,

Hasheem,

AL-Ruwashdi

2024

IJST

View full text Add to dashboard Cite

show abstract

“…Precursor powders were synthesized by reverse precipitation of metals chlorides (MeCl3•6H2O, where Me are Al, Sc, Y, Er) into a cooled aqueous ammonia solution of 25 % through spraying [5,6]. The disaggregated oxyhydrate powders were annealed at 1200 •C for 2 hours in an oven.…”

Section: Methodsmentioning

confidence: 99%

Fabrication and Characterization of New Er-Doped Yttrium–Scandium–Aluminum–Garnet Ceramics

Dobretsova

Zhmykhov

Kuznetsov

et al. 2022

The 3rd International Online Conference on Crystals

Self Cite

View full text Add to dashboard Cite

We report the fabrication and characterization of the yttrium aluminum garnet (Er:YAG) and yttrium scandium aluminum garnet (Er:YSAG) ceramics for implementing analysis as an active medium for 1500 nm lasing. High erbium content Er:YAG and Er:YSAG ceramics have been fabricated from Er:YAG and Er:YSAG powders, respectively. All ceramic samples belong to the garnet-type cubic structure (space group Ia3d) without any traceable impure phases. Including Sc 3+ in the Er:YAG crystal structure leads to improving mechanical characteristics and elastic-plastic properties of the materials. The optical transmittance of ceramics is affected strongly by the including Sc 3+ and increasing up to 60% at about 1500 nm.

show abstract

“…The ceramic samples have been synthesized by co-precipitation from an aqueous solution following annealing at a high temperature according to earlier published protocol [29][30][31]. We investigated four ceramic samples of the following chemical composition: Er1.5Y1.5Al5O12 (S1 and S2 samples) and Er1.43Y1.43Sc0.38Al4.76O12 (S3 and S4 samples).…”

Section: Methodsmentioning

confidence: 99%

“…The ceramic samples have been synthesized by co-precipitation from an aqueous solution following annealing at a high temperature according to earlier published protocol [29][30][31]. We investigated four ceramic samples of the following chemical composition: The room-temperature transmittance spectra of the Er 3+ :YAG ceramics were recorded using the Shimadzu UW-3101PC spectrophotometer controlled by a desktop computer in the range of 250-1700 nm with resolution of 1 nm.…”

Section: Methodsmentioning

confidence: 99%

Judd-Ofelt Analysis of High Erbium Content Yttrium-Aluminum and Yttrium-Scandium-Aluminum Garnet Ceramics

et al. 2022

Self Cite

View full text Add to dashboard Cite

The Er1.5Y1.5Al5O12 (Er:YAG) and (Er1.43Y1.43Sc0.14)(Sc0.24Al1.76)Al3O12 (Er:YSAG) ceramics have been characterized using the Judd-Ofelt (JO) theory. The line strengths and oscillator strengths of several transitions from the ground state 4I15/2 to excited state manifolds have been evaluated from transmittance spectra measured at room temperature (300 K). The JO parameters have been calculated, and the values of the radiative decays rate and the radiative lifetimes for the 4I13/2 excited state, and the luminescence cross-section of 4I15/2 → 4I13/2 in Er-doped ceramic samples have been established. We have traced the influence of Sc3+ inclusion on spectroscopic properties and crystal quality and estimate prospects of application in laser systems.

show abstract

The influence of the Sc³⁺ dopant on the transmittance of (Y, Er)₃Al₅O₁₂ ceramics

Abstract: The substitution of Al3+ with the larger Sc3+ in the Er:YSAG structure leads to improved elastic–plastic properties. The optical transmittance of the ceramics is affected strongly by including Sc3+ and is increased to up to 60% at about 1.5 μm.

Cited by 9 publications

References 24 publications

Studying the Absorption and Fluorescence Parameters of Ho: YAP Laser Using the Judd-Oflet Model

Studying the Absorption and Fluorescence Parameters of Ho: YAP Laser Using the Judd-Oflet Model

Fabrication and Characterization of New Er-Doped Yttrium–Scandium–Aluminum–Garnet Ceramics

Judd-Ofelt Analysis of High Erbium Content Yttrium-Aluminum and Yttrium-Scandium-Aluminum Garnet Ceramics

Contact Info

Product

Resources

About