Terbium concentration effect on magneto-optical properties of ternary phosphate glass

Бабкина, А. Н.; Kulpina, Ekaterina; Sgibnev, Yevgeniy; Fedorov, Yuriy; Starobor, Aleksey; Palashov, O.; Никоноров, Н. В.; Ignatiev, Alexander; Zyryanova, Ksenia; Орешкина, К. В.; Жижин, Е. В.; Pudikov, D. A.

doi:10.1016/j.optmat.2020.109692

Cited by 34 publications

(6 citation statements)

References 69 publications

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“…In the low range of 2theta angle (5 • to 16 • ), one can also observe an increased background intensity due to more efficient X-ray scattering in air. Obtained X-ray patterns are similar to those that can be find in literature [31][32][33]. The results of DSC analysis are presented in Figure 1b.…”

Section: Results Of Xrd and Dsc Analysis Of Synthesized Glassessupporting

confidence: 83%

Use of Terbium Doped Phosphate Glasses for High Dose Radiation Dosimetry—Thermoluminescence Characteristics, Dose Response and Optimization of Readout Method

2021

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The phosphate glass samples doped with Tb2O3 oxide (general formula: P2O5-Al2O3-Na2O-Tb2O3) were synthesized and studied for usage in high-dose radiation dosimetry (for example, in high-activity nuclear waste disposals). The influence of terbium concentration on thermoluminescent (TL) signals was analyzed. TL properties of glasses were investigated using various experimental techniques such as direct measurements of TL response vs. radiation dose, Tmax–Tstop and VHR (various heating rate) methods, and glow curve deconvolution analysis. The thermoluminescence dosimetry (TLD) technique was used as the main investigation tool to study detectors’ dose responses. It has been proved that increasing the concentration of terbium oxide in glass matrices significantly increases the thermoluminescence yield of examined material. For the highest dose range (up to 35 kGy), the dependence of the integrated thermoluminescent signals vs. dose can be considered as a saturation-type curve. Additional preheating of samples improves linearity of signal vs. dose dependencies and leads to a decrease of the signal loss over time. All obtained data suggest that investigated material can be used in high-dose radiation dosimetry. Additional advantages of the investigated dosimetric system are its potential ability to re-use the same dosimeters multiple times and the fact that reading dosimeters only requires usage of a basic TL reader without any modifications.

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Section: Results Of Xrd and Dsc Analysis Of Synthesized Glassessupporting

confidence: 83%

Use of Terbium Doped Phosphate Glasses for High Dose Radiation Dosimetry—Thermoluminescence Characteristics, Dose Response and Optimization of Readout Method

2021

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“…MO glass is one of the earliest used MO materials owing to its high optical quality and excellent dimensional scalability [36,37]. By doping Pb 2+ , Sb 3+ , Te 4+ , Bi 3+ , or Tl + , the glasses show diamagnetic [38][39][40][41] , but their Verdet constant is small and thus the diamagnetic glasses are unfavorable for application; by doping paramagnetic ions like Pr 3+ , Ce 3+ , Nd 3+ , Tb 3+ , Dy 3+ , Ho 3+ , Er 3+ , Yb 3+ , the glasses show paramagnetism and the value of the Verdet constant is higher than diamagnetic glasses [42][43][44][45][46]. From Eq.…”

Section: Magneto-optical Materials For Faraday Isolatorsmentioning

confidence: 99%

A review on magneto-optical ceramics for Faraday isolators

Zhang¹,

Hu²,

Snetkov³

et al. 2023

Journal of Advanced Ceramics

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As a promising magneto-optical material applied in Faraday isolators, magneto-optical ceramics possess excellent comprehensive properties and have attracted much attention these years. Herein, we review the fabrication and properties of magneto-optical ceramics including garnet, sesquioxide, and A2B2O7ceramics. Some of the ceramics have been proved to possess applicable performance, while further studies are still needed for most of the magneto-optical ceramics. Aiming at the application for isolators, the research status, existing problems, and development trends of magneto-optical ceramics are shown and discussed in this review.

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“…The results of measuring the Verdet constant for 4% La:Yb 2 O 3 ceramics are shown in Figure 7 in comparison with the widely used TGG material (see Figure 7a) and with some other known magneto-optical materials which are transparent in the spectral range beyond 1.4 µm (see Figure 7b). The dependences of the Verdet constant on the wavelength are obtained by approximating experimental data for a TGG single crystal [32], Dy 2 O 3 ceramics [20] using the approximation formula from [33], Er 2 O 3 ceramics [25], Ho 2 O 3 ceramics [24,35], EuF 2 , NHF single crystals [36], and for some types of magneto-optical glasses: ternary phosphate glass [37] and TeO 2 [38]. and this dependence is very different in the region of absorption bands (0.9-1.1 µm), where it is impossible to use this material as a magneto-optical one.…”

Section: Sintering and Microstructure Of (Yb X La 1−x ) 2 O 3 Ceramicsmentioning

confidence: 99%

Fabrication and Magneto-Optical Properties of Yb2O3 Based Ceramics

et al. 2020

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Transparent ceramics based on ytterbium oxide have been successfully produced by vacuum sintering of self-propagating high-temperature synthesized powders with use of a La2O3 sintering aid. Phase composition and microstructure of the initial powders were studied by X-ray diffraction analysis and scanning electron microscopy. It was found that addition of 5 mol.% of La2O3 does not cause formation of secondary phases in the Yb2O3 powders. The 4% La:Yb2O3 ceramics showed the best in-line transmittance of 73% at a wavelength of 2 μm among the studied samples. Dependence of the Verdet constant on wavelength was investigated in the range of 0.4–2 μm. The most promising finding is use of the obtained material as Faraday isolators in the wavelength region of ~1.5 μm, where there are no absorption bands, and the Verdet constant is 8.6 rad/(T*m).

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Terbium concentration effect on magneto-optical properties of ternary phosphate glass

Cited by 34 publications

References 69 publications

Use of Terbium Doped Phosphate Glasses for High Dose Radiation Dosimetry—Thermoluminescence Characteristics, Dose Response and Optimization of Readout Method

Use of Terbium Doped Phosphate Glasses for High Dose Radiation Dosimetry—Thermoluminescence Characteristics, Dose Response and Optimization of Readout Method

A review on magneto-optical ceramics for Faraday isolators

Fabrication and Magneto-Optical Properties of Yb2O3 Based Ceramics

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