Effects of Er³⁺ and Yb³⁺ doping on structural and non-linear optical properties of LiNaSO₄

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• 作者：I.C. Palmero ; C. Gonz&#xe1 ; lez-Silgo ; M.E. Torres ; D. Marrero-Ló ; pez ; Fern ; o Rivera-Ló ; pez ; P. Haro-Gonz&#xe1 ; lez ; X. Solans
• 关键词：LiNaSO₄ ; Ionic conductor ; Phase transition ; Luminescence ; Non-linear crystal ; Er³⁺ ; Yb³⁺
• 刊名：Journal of Luminescence
• 出版年：2008
• 期刊代码：54_00222313
• 类别：ch
• 出版时间：May-June 2008
• 卷：128
• 期：5-6
• 页码：1025-1028
• 文件大小：178 K

摘要

We have characterized LiNaSO₄ crystals doped with rare earth (RE) (Er³⁺ and Yb³⁺) to give new insights about their structural properties relations. The samples were analyzed by X-ray single crystal diffraction and differential thermal analysis. The non-centrosymmetry was confirmed second-harmonic generation. Inductively coupled plasma (ICP) and emission experiments confirmed the nominal concentrations of the REs. Crystallographic data and two empirical models were employed to understand the structural modifications by substitution of the Na site which reduces, monotonically, the non-linear optical coefficients and the temperature of the phase transition in these crystals.