Study of crystal formation in titanate glass irradiated by 800 nm femtosecond laser pulse

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• 作者：Bo Lu ; Bingkun Yu ; Bin Chen ; Xiaona Yan ; Jianrong Qiu ; Xiongwei Jiang and Congshan Zhu
• 关键词：A1. Anatase crystal ; A1. Femtosecond laser ; B1. Titanate glass ; B3. Raman spectra
• 刊名：Journal of Crystal Growth
• 出版年：2005
• 出版时间：2005
• 年：2005
• 卷：285
• 期：1-2
• 页码：76-80
• 全文大小：255 K

文摘

The structure of the titanate glass is destroyed during irradiation by the femtosecond laser pulses, and (TiO₆)⁸⁻ and (TiO₄)⁴⁻ anion units are exsolved from the network of the titanate glass. These anion units are rearranged to form some crystals such as anatase and Ba₂TiO₄ crystals. By Raman spectroscopy, it is found that these crystals have a strong dependence on the intensity of the femtosecond laser pulses. The relation between the generation of these crystals and space distribution of the femtosecond laser power intensity is qualitatively explained.