| 近化学计量比Zn:LiTaO3晶体的生长和抗光折变性能 |
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| 引用本文： | 郑威,王东鹏,徐玉恒. 近化学计量比Zn:LiTaO3晶体的生长和抗光折变性能[J]. 硅酸盐学报, 2009, 37(11): 1829-1832 |
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| 作者姓名： | 郑威 王东鹏 徐玉恒 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院,哈尔滨,150040;哈尔滨工业大学机电工程学院,哈尔滨,150001 |
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| 摘 要： | 采用顶部籽晶溶液法,生长了直径约15mm,长度为10mm的近化学计量比钽酸锂(near-stoichiometric Li TaO3,SLT)和Zn掺杂的近化学计量比钽酸锂(Zn:SLT)晶体。生长的晶体无色透明,没有宏观缺陷。通过X射线粉末衍射法测试晶体结构和晶格参数,Zn:SLT晶体的晶格参数小于未掺杂的SLT晶体。与同成分钽酸锂晶体相比,SLT晶体的抗光损伤能力显著提高,Zn:SLT晶体的抗光损伤阈值大于500MW/cm2。
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| 关 键 词： | 近化学计量比钽酸锂晶体 锌掺杂 顶部籽晶溶液生长法 光损伤 |
GROWTH AND PHOTOREFRACTIVE RESISTANCE PROPERTIES OF NEAR-STOICHIOMETRIC Zn:LiTaO_3 CRYSTAL |
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| ZHENG Wei,WANG Dongpeng,XU Yuheng. GROWTH AND PHOTOREFRACTIVE RESISTANCE PROPERTIES OF NEAR-STOICHIOMETRIC Zn:LiTaO_3 CRYSTAL[J]. Journal of The Chinese Ceramic Society, 2009, 37(11): 1829-1832 |
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| Authors: | ZHENG Wei WANG Dongpeng XU Yuheng |
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| Abstract: | Near-stoichiometric LiTaO_3(SLT) and Zn-doped near-stoichiometric LiTaO_3 (Zn:SLT) crystals about 15 mm in diameter and 10 mm in length were grown by the top seeded solution growth method. The crystals grown are colorless and transparent and without macro-defects. The lattice constant of the Zn:SLT calculated by X-ray powder diffraction is smaller than that of the SLT. Compared with congruent LiTaO_3 crystals. The SLT exhibits much higher optical damage resistance, and the optical damage threshold of the Zn:SLT crystal is more than 500 MW/cm~2. |
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| Keywords: | near-stoichiometric lithium tantalate crystal zinc-doped top seeded solution growth method optical damage |
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