Investigation of the KLu(WO4)2 crystal as an acousto-optic material

Velikovskii, D. Yu.; Mazur, M. M.; Pavlyuk, A. A.; Пожар, В. Э.; Солодовников, С. Ф.; Yudanova, L. I.

doi:10.3103/s1541308x15010094

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Compounds such as ZrW 2 O 8 , Sc 2 (WO 4 ) 3 and their doped derivatives have negative thermal expansion (Mary et al, 1996;Evans et al, 1997;Lind, 2012). Crystals of KRE(WO 4 ) 2 (RE = Gd, Y, Lu), CsLa(WO 4 ) 2 and other double tungstates are effective laser hosts and acousto-optic materials (Ayupov et al, 1986;Kaminskii, 2017;Velikovskii et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Spiridonova

Солодовников

Savina

et al. 2020

Acta Crystallogr Sect B

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A new triple tungstate Rb 9Àx Ag 3+x Sc 2 (WO 4 ) 9 (0 x 0.15) synthesized by solid state reactions and spontaneous crystallization from melts presents a new structure type related to those of Cs 7 Na 5 Yb 2 (MoO 4 ) 9 and Na 13 Sr 2 Ta 2 (PO 4 ) 9 . The title compound in centrosymmetric space group Cmcm contains dimers of two ScO 6 octahedra sharing corners with three bridging WO 4 tetrahedra. Three pairs of opposite terminal WO 4 tetrahedra are additionally linked by AgO 2 dumbbells to form {Ag 3 [Sc 2 (WO 4 ) 9 ]} 9À groups, which together with some rubidium ions are packed in pseudohexagonal glaserite-like layers parallel to (001), but stacking of the layers is different in these three structures. In the title structure, the layers stack with a shift along the b axis and their interlayer space contains disordered Rb + cations partially substituted by Ag + ions. Almost linear chains of incompletely filled close Rb3a-Rb3d positions (the shortest distances Rb-Rb are 0.46 to 0.64 Å ) are found to locate approximately along the b axis. This positional disorder and the presence of wide common quadrangular faces of Rb2 and Rb3a-Rb3d coordination polyhedra favor two-dimensional ionic conductivity in the (001) plane with Rb + and Ag + carriers, which was confirmed with bond valence sum (BVS) maps. Electrical conductivity measurements on Rb 9 Ag 3 Sc 2 (WO 4 ) 9 ceramics revealed a first-order superionic phase transition at 570 K with a sharp increase in the electrical conductivity. The conductivity i = 1.8 Â 10 À3 S cm À1 at 690 K is comparable with the value of 1.0 Â 10 À3 S cm À1 (500 K) observed earlier for rubidium-ion transport in pyrochlore-like ferroelectric RbNbWO 6 .

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Section: Introductionmentioning

confidence: 99%

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Spiridonova

Солодовников

Savina

et al. 2020

Acta Crystallogr Sect B

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Specific directions of ultrasound propagation in double potassium tungstates for light modulation

Mazur

Пожар

2017

Ultrasonics

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Acousto-optic modulators of high-power laser radiation on the basis of KGW and KYW crystals

Mazur

Sirotkin

et al. 2020

Quantum Electron.

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Different modifications of acousto-optic modulators (AOMs) based on KG(WO4)2 (KGW) and KY(WO4)2 (KYW) crystals, designed for Q switching of high-power pulsed lasers, is developed and investigated. It is shown that AOMs based on these crystals are universal, can be combined with different lasers in the wavelength range of 1 – 3 μm, and have a high radiation resistance in the absence of antireflection coatings and light input at Brewster’s angle. The operation efficiency of KGW-based AOMs is experimentally demonstrated. Solid-state lasers based on Cr : Er : YSGG (λ = 2.78 μm), Cr : Yb : Ho : YSGG (λ = 2.87 μm), Cr : Tm : Ho : YSGG (λ = 2.09 μm), and Nd : YAG (λ = 1.064 μm) crystals with active acousto-optic Q switching, operating in the repetitively pulsed regime with a high beam quality and without surface destruction, are investigated. Lasing pulses (30 – 60)-ns long with energy up to 32 mJ at a repetition rate from 1 to 1000 Hz are obtained.

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Investigation of the KLu(WO4)2 crystal as an acousto-optic material

Cited by 3 publications

References 6 publications

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Specific directions of ultrasound propagation in double potassium tungstates for light modulation

Acousto-optic modulators of high-power laser radiation on the basis of KGW and KYW crystals

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Investigation of the KLu(WO4)2 crystal as an acousto-optic material

Cited by 3 publications

References 6 publications

Rb9–xAg3+xSc2(WO4)9: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Rb9–xAg3+xSc2(WO4)9: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Specific directions of ultrasound propagation in double potassium tungstates for light modulation

Acousto-optic modulators of high-power laser radiation on the basis of KGW and KYW crystals

Contact Info

Product

Resources

About

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity

Rb_9–_xAg_3+xSc₂(WO₄)₉: a new glaserite-related structure type, rubidium disorder, ionic conductivity