Optical Transmission Spectra of Na_(0.4)R_(0.6)F_(2.2) Single Crystals with Fluorite Structure

机译：具有萤石结构的Na_（0.4）R_（0.6）F_（2.2）单晶的光透射光谱

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Na_(0.4)R_(0.6)F_(2.2) single crystals with fluorite structure were grown by the Stockbarger method. Optical transmission spectra were recorded on the 2 mm thick samples of these crystals at room temperature in the broad spectral region (0.2 - 12 μm). It was found that the spectra of crystals with Dy, Ho, Er and Tm ions have the clearly defined discrete structure with a large number of absorption bands in visible, UV and nearest IR regions. The spectra become simpler on going from Dy to Yb. The spectra of crystals with Y and Lu are simplest, almost coinciding and similar to the NaF-crystal spectrum. The peculiarities of these spectra are due to the REE-ions presence in crystalline structure. All single crystals studied have the IR absorption edge at λ～12 μm. The spectra obtained are compared with these of other fluorides.

机译：用Stockbarger方法生长具有萤石结构的Na_（0.4）R_（0.6）F_（2.2）单晶。在室温下，在宽光谱区域（0.2-12μm）中，在这些晶体的2毫米厚样品上记录了光学透射光谱。发现具有Dy，Ho，Er和Tm离子的晶体的光谱具有清晰定义的离散结构，在可见光，UV和最接近的IR区域具有大量吸收带。从Dy到Yb，光谱变得更简单。具有Y和Lu的晶体的光谱是最简单的，几乎重合的并且类似于NaF晶体的光谱。这些光谱的特殊性是由于在晶体结构中存在REE离子。所有研究的单晶的红外吸收边都在λ〜12μm。将获得的光谱与其他氟化物的光谱进行比较。

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《Conference on Lightmetry: Metrology, Spectroscopy, and Testing Techniques Using Light Jun 5-8, 2000, Pultusk, Poland》|2000年|p.59-61|共3页
会议地点 Pultusk(PL)
作者
Shtyrkova A.P.; Glushkova T.M.; Firsova M.M.; Kiselev D.F.; Krivandina E.A.; Zhmurova Z.I.;
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Department of Physics, Lomonosov Moscow State University, Vorob'evy Hills, Moscow 119899, Russia.;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
fluoride; nonstoichiometrical phases; rare earth elements; optical transmission spectra; absorption bands; IR absorption edge;

机译：氟化物;非化学计量相稀土元素；光学透射光谱；吸收带红外吸收边缘;
入库时间 2022-08-26 14:09:05

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Optical Transmission Spectra of Na_(0.4)R_(0.6)F_(2.2) Single Crystals with Fluorite Structure

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