| 用银靶X射线形貌术研究Nd:YAG晶体中位错的性质及运动 |
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| 引用本文： | 邓佩珍,胡兵.用银靶X射线形貌术研究Nd:YAG晶体中位错的性质及运动[J].光学学报,1988(7). |
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| 作者姓名： | 邓佩珍 胡兵 |
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| 作者单位： | 中国科学院上海光学精密机械研究所
(邓佩珍)，中国科学院上海光学精密机械研究所(胡兵) |
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| 摘 要： | 用AgK_α辐射X射线透射形貌术成功地显示了Nd:YAG晶体中的缺陷性质及其分布.在用引上法及温梯法生长的晶体中存在数种缺陷如生长条纹、沉淀粒子、刃位错、螺应错以及由于位错运动而形成的混合型位错.实验结果与光学方法所得结果相一致,但在判明位错的性质方面,X射线形貌术有其独特的优点.
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| 关 键 词： | 形貌术 混合位错 攀移运动 |
Investigation of dislocation properties and motion in YAG by means of X-ray transmission topography with AgKa radiation |
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| DENG PEIZHEN AND HU BING.Investigation of dislocation properties and motion in YAG by means of X-ray transmission topography with AgKa radiation[J].Acta Optica Sinica,1988(7). |
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| Authors: | DENG PEIZHEN AND HU BING |
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| Abstract: | The properties and distribution of defects in Nd:YAG crystals are successfully obtained by means of X-ray transmission topography with AgKa radiation. It is shown that there are several kinds of defects, such as growth striations. precipitated particles. edge dislocations, screw dislocations and mixed dislocations formed by dislocation motions in 2Sd:YAG crystals grown by CZ and Temperature Gradient Techniques (TGT). Some experimental results are consistent with the results obtained by optical methods, however, X-ray method has its special advantage in discriminating the properties of dislocations. |
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| Keywords: | topography mixed dislocation climb motion |
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