Ti-Doped Sapphire (Al2O3) Single Crystals Grown by the Kyropoulos Technique and Optical Characterizations

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• 作者：Abdeldjelil Nehari ; Alain Brenier ; Gerard Panzer ; Kheireddine Lebbou ; Jerome Godfroy ; Serge Labor ; Herve Legal ; Gilles Che虂riaux ; Jean Paul Chambaret ; Theirry Duffar ; Richard Moncorge虂
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：February 2, 2011
• 年：2011
• 卷：11
• 期：2
• 页码：445-448
• 全文大小：832K
• 年卷期：v.11,no.2(February 2, 2011)
• ISSN：1528-7505

文摘

Transparent high optical quality and large Ti-sapphire (Ti³⁺-doped Al₂O₃) single crystals have been grown by the Kyropoulos technique (KT) for optical amplification. The present work shows that by the utilization of KT growth technology and the optimization of the growth conditions it is possible to grow Ti-doped Al₂O₃, 100 mm in diameter and 5 kg in weight. We have demonstrated that large Ti(0.25 atom %)-doped Al₂O₃ crystals show high chemical homogeneities and good optical properties and amplify the energy without any special annealing. Ti-doped sapphire crystals are for high power laser applications and particularly for the shortest pulses ever produced from a laser oscillator.