| 掺锂、钠、钾的萤石色心激光晶体生长 |
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| 引用本文： | 黄振辉,王联治.掺锂、钠、钾的萤石色心激光晶体生长[J].地质科学,1985,0(1):97-104. |
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| 作者姓名： | 黄振辉 王联治 |
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| 作者单位： | 1. 中国科学院地质研究所;2. 中国科学院物理研究所 |
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| 摘 要： | 近几年来,碱卤化合物类和碱土金属氟化物类色心激光晶体研究发展很快。色心晶体的研制促进了可调谐色心激光的飞跃发展,它已成为可调谐激光晶体中的一个重要组成部分。
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| 关 键 词： | , |
| 收稿时间： | 1983-02-28 |
| 修稿时间： | 1983-02-28; |
GROWTH OF Li+, Na+,K+-DOPED FLUORITE AS COLOR-CENTER LASER CRYSTALS |
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| Huang Zhenghui,Wang Lianzhi.GROWTH OF Li+, Na+,K+-DOPED FLUORITE AS COLOR-CENTER LASER CRYSTALS[J].Chinese Journal of Geology,1985,0(1):97-104. |
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| Authors: | Huang Zhenghui Wang Lianzhi |
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| Institution: | 1. Institute of Geology, Academia Sinica, Beijing;2. Institute of Physics, Academia Sinica, Beijing |
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| Abstract: | The coloration of fluorite would be improved by doping impurity ions Li+, Na+, K+, Which may serve as a basic working material of tunable color-center laser probally operating at room temperature, and as a result, causes extensive attention. Some works on how to increase the concentration of Li+, Na+, or K+ in CaF2 crystal, such as preparation of raw materials, method for crystatal growth, test of crystal deffection, determination of impurity concentration and so on, were carried out and the preliminary results achieved are the following.Four different raw materials were prepared:(1)purified natural flurite with good quality which is proportionally mixed with the eommercial reagents of LiF, NaF and KF as normal powder;(2)the mixed material of synthetic crystals of LiF, NaF and CaF2;(3)chemically eopreeipitated material;(4)solid-phase reaction material. Using the graphite crucible depression method, contrast experiments of gas-free-filling for the crystal growth of the four raw materials described above indicate that the impurities in the crystals growing with normal fine powder is the lowest and impurity content in the crystals growing with crystal fine powder are slightly improved while the crystals obtained with chemically eopreeipitated and solid-phase reaction material are better. The single crystals in size of 10?60 mm more transparent are demonstrated in photo 1. The concentration of impurities in the doped CaF2:Na+ was measured by atomic absorption spectroscope, the content of NaF being of 0.1-0.4%(Mol). |
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| Keywords: | , |
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