Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part I. Czochralski growth, structure refinement and Raman spectra

Субботин, К. А.; Loiko, Pavel; Slimi, Sami; Volokitina, Anna; Titov, A. I.; Lis, D. A.; Чернова, Е. В.; Kuznetsov, S. V.; Solé, R.; Griebner, Uwe; Petrov, Valentín; Aguiló, Magdalena; Dı́az, Francesc; Camy, Patrice; Жариков, Е. В.; Mateos, Xavier

doi:10.1016/j.jlumin.2020.117601

Cited by 13 publications

(5 citation statements)

References 56 publications

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“…The difficulty associated with Yb 3+ and Li + codoping is that these ions have different segregation coefficients in the ZnWO 4 crystal [11,18]. Therefore, in order to obtain equimolar concentrations of Yb 3+ and Li + in the crystal (and, therefore, complete Yb 3+ change compensation by Li + , without vacancies), the nominal Li + content in the growth charge should be optimized.…”

Section: Crystal Growthmentioning

confidence: 99%

“…The favorable thermo-mechanical properties of the ZnWO 4 crystal, characterized by weak anisotropy of the thermal expansion [11] and moderate (3-5 Wm -1 K -1 ) thermal conductivity [12] make it an appealing candidate for laser applications. Doping with rare-earth ions, particularly Yb 3+ [13], Tm 3+ [14] and Dy 3+ [15], has been explored for laser development.…”

Section: Introductionmentioning

confidence: 99%

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Monoclinic Yb3+,Li+:ZnWO4 - efficient broadly emitting laser material

Elabedine,

Subbotin,

Loiko

et al. 2024

Solid State Lasers XXXIII: Technology and Devices

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Yb 3+ ,Li + -codoped monoclinic zinc tungstate (ZnWO 4 ) crystals with optimized Li + content providing efficient local charge compensation were grown by the Czochralski method. Heavy Li + codoping makes the Yb 3+ -doped ZnWO 4 crystals less prone to cracking, improves the Yb 3+ segregation, reduces the melting point and induces inhomogeneous spectral line broadening. The polarized absorption and stimulated-emission cross-sections of Yb 3+ in ZnWO 4 were determined. The maximum stimulated-emission cross-section σ SE is 2.94×10 -20 cm 2 at 1055.5 nm corresponding to an emission bandwidth of 12.2 nm for light polarization E || N p . The formation of Yb 3+ optical centers in singly Yb 3+ -doped and Yb 3+ ,Li + -codoped zinc monotungstate crystals is revealed by low-temperature spectroscopy. The Yb,Li:ZnWO 4 laser pumped by a commercial 976-nm Yb-fiber laser generated 2.41 W at ~1.06 μm with a slope efficiency of 76.4%, a laser threshold of 143 mW and linear polarization.

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Section: Crystal Growthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monoclinic Yb3+,Li+:ZnWO4 - efficient broadly emitting laser material

Elabedine,

Subbotin,

Loiko

et al. 2024

Solid State Lasers XXXIII: Technology and Devices

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show abstract

“…They are plotted versus the ionic radius. According to the Onuma's principle, this dependence can be expressed using the following equation: KRE = 1 -C(RRE -RY) 2 , where C is a material-dependent constant [36]. The points in Fig.…”

Section: Compositional Analysismentioning

confidence: 99%

Liquid phase epitaxy growth and structural characterization of highly-doped Er3+:LiYF4 thin films

et al. 2022

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“…This crystal has better thermal conductivity [ 1 ] and crack resistance [ 6 , 7 ] than many other tungstate and molybdate crystals. Despite low crystallographic symmetry [ 8 ], ZnWO 4 crystal has very modest anisotropy of thermal expansion coefficients [ 1 , 9 ] that inhibits its thermo-mechanical strain during the crystal cooling after Czochralski growth [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Accidental Impurities on the Spectroscopic and Luminescent Properties of ZnWO4 Crystal

et al. 2023

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Special techniques for deep purification of ZnO and WO3 have been developed in this work. A ZnWO4 single crystal has been grown by the Czochralski method using purified ZnO and WO3 chemicals, along with the ZnWO4 crystal-etalon, which has been grown at the same conditions using commercially available 5N ZnO and WO3 chemicals. The actual accidental impurities compositions of both the initial chemicals and the grown crystals have been measured by inductively coupled plasma mass-spectrometry. A complex of comparative spectroscopic studies of the crystals has been performed, including optical absorption spectra, photo-, X-ray-, and cathodoluminescence spectra and decay kinetics, as well as the photoluminescence excitation spectra. The revealed differences in the measured properties of the crystals have been analyzed in terms of influence of the accidental impurities on these properties.

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Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part I. Czochralski growth, structure refinement and Raman spectra

Cited by 13 publications

References 56 publications

Monoclinic Yb3+,Li+:ZnWO4 - efficient broadly emitting laser material

Monoclinic Yb3+,Li+:ZnWO4 - efficient broadly emitting laser material

Liquid phase epitaxy growth and structural characterization of highly-doped Er3+:LiYF4 thin films

Influence of Accidental Impurities on the Spectroscopic and Luminescent Properties of ZnWO4 Crystal

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