2023
DOI: 10.3390/cryst13071031
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Preparation, Properties, and Applications of Near Stoichiometric Lithium Tantalate Crystals

Abstract: Lithium tantalate crystal is widely used in optical devices, infrared detectors and surface acoustic wave devices because of its excellent piezoelectric, acousto-optic and nonlinear optical properties. The Li content of near stoichiometric lithium tantalate (NSLT) crystal is higher than that of congruent lithium tantalate (CLT) crystal. Therefore, the performance of NSLT crystal is better than that of CLT crystal in some aspects. This article reviews the physical properties, preparation methods and current res… Show more

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Cited by 4 publications
(1 citation statement)
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“…Due to the substoichiometry of Li ions, there are numerous defects, including Li vacancy defects and Ta inversion defects [34]. Near stoichiometric lithium tantalate (NSLT) crystals with a Li:Ta ratio close to 50:50 have a more perfect lattice structure due to the good stoichiometry of Li content, which results in higher TC and better performance compared to CLT crystals [35,36]. Schossig et al [26] Therefore, it is important to maximize the temperature change through thermal isolation of the crystal and the use of low thermal diffusivity absorbing coatings to rapidly transfer heat to the crystal.…”
Section: Near Stoichiometric Lithium Tantalate Crystalsmentioning
confidence: 99%
“…Due to the substoichiometry of Li ions, there are numerous defects, including Li vacancy defects and Ta inversion defects [34]. Near stoichiometric lithium tantalate (NSLT) crystals with a Li:Ta ratio close to 50:50 have a more perfect lattice structure due to the good stoichiometry of Li content, which results in higher TC and better performance compared to CLT crystals [35,36]. Schossig et al [26] Therefore, it is important to maximize the temperature change through thermal isolation of the crystal and the use of low thermal diffusivity absorbing coatings to rapidly transfer heat to the crystal.…”
Section: Near Stoichiometric Lithium Tantalate Crystalsmentioning
confidence: 99%