钛宝石激光晶体在现代高功率激光领域具有重要的应用价值, 但大尺寸、高品质的晶体生长仍是当前钛宝石应用面临的重大难题. 本文研究了泡生法技术生长大尺寸掺碳钛宝石激光晶体, 结果显示, 泡生法生长得到的直径180 mm、30 kg的钛宝石没有出现应力集中的开裂等宏观缺陷现象, 钛离子在晶体中分布均匀接近理论值, 晶体的FOM值达到200. 该研究对低红外残余吸收, 高品质因素、大尺寸钛宝石激光晶体的生长应用具有重要的现实意义.
Ti:sapphire crystal is of great value in the domain of modern science and technology application. But growth of large Ti:sapphire crystals with a homogeneous titanium distribution and good optical quality is still a challenge. Carbon-doped Ti:sapphire crystal was grown by the Kyropoulos technique. The present work shows that by the utilization of KY growth technology, it is possible to grow carbon-doped Ti:sapphre, with 180 mm in diameter and 30 kg in weight, without macroscopic defects such as cracking. As-grown large crystals show high chemical homogeneities and the figure of merit is above 200, The study has the important practical significance of grown large Ti:Sapphire crystal with low infrared absorption loss and high figure of merit.
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