Growth, refined structural and spectroscopic characteristics of Tm3+-doped NaGd(WO4)2 single crystals

Bolschikov, F.A.; Кузьмичева, Г. М.; Lis, D. A.; Papin, Yu. M.; Попов, А. В.; Ryabochkina, P. A.; Rybakov, Victor B.; Сенин, В. Г.; Smirnov, Valerii A; Субботин, К. А.; Voron’ko, Yu. K.; Voronov, V. V.; Жариков, Е. В.

doi:10.1016/j.jcrysgro.2009.05.032

Cited by 15 publications

(12 citation statements)

References 24 publications

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“…In this case, grown crystals have mirror-like smooth surface from beginning to the end parts of boule [55]. Other authors are using either the same way of compensation the WO 3 evaporation during the growth (see, for instance, [56]), or add a slight amount of Na 2 W 2 O 7 (see [57], and later papers of these authors).…”

Section: Mutual Inuence Of Dopantsmentioning

confidence: 99%

Growth of Oxide Laser Crystals by Czochralski Method

et al. 2013

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The growth of series of actual laser crystals belonging to dierent structural types by the Czochralski method is presented. The primary attention is given to single crystalline compounds and their solid solutions with garnet structure (scandium-containing rare-earth garnets with general formula {LnSc}3[ScMe]2Me3O12, Me = Al, Ga) as well as with olivine (forsterite Mg2SiO4) and scheelite structure (double tungstates and molybdates with formula NaLn(TO4)2, where T = Mo or W). The broad bands of luminescence and absorption produced by activator ions in these laser hosts that appear either as a result of structural disorder (garnets, scheelites) or due to the doping by transition metal ions (chromium in forsterite) join together these representatives of dierent structural classes and determine their application in photonics. The paper considers the problems of growing of large crystals with uniform distribution of components and dopants, determination of congruently melting composition, especially in compounds with complex isomorphism. The mutual inuence of components and dopants, redistribution of ions along crystallographically non-equivalent sites in the structure, alteration of valency of transition metal ions accompanied with the change of their segregation coecients under variation of redox conditions is discussed.

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Section: Mutual Inuence Of Dopantsmentioning

confidence: 99%

Growth of Oxide Laser Crystals by Czochralski Method

et al. 2013

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“…Структура данного кристалла является производной от структуры шеелита CaWO 4 и состоит из [WO 4 ] 2− -тетраэдров, при этом катионы Na + и Gd 3+ , замещающие Ca 2+ , находятся внутри сильно искаженного восьмикратного кислородного окружения. Кристаллы NGW, легированные РЗИ, имеют пространственные группы I4 1 /a, I/4, I4/m или I4, с параметрами элементарной ячейки a ∼ 5.22 ¦ , c ∼ 11.35 ¦ , в зависимости от конкретной легирующей примеси и ее концентрации [3,[5][6][7][8][9]. Данные кристаллы могут быть легко получены методом Чохральского, при этом все РЗИ обладают хорошей твердофазной растворимостью в кристалле [1,3,4,6,7,9].…”

Section: Introductionunclassified

Влияние неконтролируемых примесей на спектр поглощения лазерного кристалла NaGd(WO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=-

Зыкова¹,

Субботин²,

Павлов³

et al. 2019

Физика Твердого Тела

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Three NaGd(WO4)2 single crystals have been grown by Czochralski technique using the initial chemicals with different purity. Impurity concentrations were determined by the inductively coupled plasma mass-spectrometry. The optical absorption spectra of the crystals were measured and the influence of residual impurities' contents on optical properties and coloration of the crystals was determined. It was demonstrated that the green coloration which is sometimes observed for NaGd(WO4)2 crystals results from the presence of residual impurities of d-elements, for which the cromium impurity is the most important

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“…According to the literature data, the main rare-earth elements considered as dopants for double molybdates and tungstates are neodymium Nd 3+ [6,7], cerium Ce 3+ [8], erbium Er 3+ [8,9], thulium Tm 3+ [9,10] and ytterbium Yb 3+ [11]. Due to the wide application of diode pumping, the Yb 3+ ion has aroused considerable interest as a dopant.…”

Section: Introductionmentioning

confidence: 99%

“…Scheelite family crystals are usually grown by the Czochralski method due to the absence of polymorphic transitions below their melting point [1,[8][9][10][11][12][13]. To date, a significant number of bulk single crystals of various double tungstates and molybdates doped with rare-earth ions have been obtained and their physical properties have been studied [1,2,[5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…To date, a significant number of bulk single crystals of various double tungstates and molybdates doped with rare-earth ions have been obtained and their physical properties have been studied [1,2,[5][6][7][8][9][10][11][12]. However, depending on the growth conditions and the initial compositions of charge, a change in both symmetry (in particular, the loss of a center of symmetry) and unit cell size may occur in the local regions of double molybdates and tungstates [9,13,14].…”

Section: Introductionmentioning

confidence: 99%

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