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无机材料学报

无机材料学报

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高频超短脉冲激光诱导玻璃内LiNbO3晶体生长

姜雄伟; 邱建荣; 曾惠丹; 朱从善   

  1. 中国科学院上海光学精密机械研究所中日合作“Photon Craft Project”实验室 上海 201800
  • 收稿日期:2003-06-18 修回日期:2003-07-28 出版日期:2004-07-20 网络出版日期:2004-07-20

Femtosecond Laser Induced Growth of LiNbO3 Crystal in Glass

JIANG Xiong-Wei; QIU Jian-Rong; ZENG Hui-Dan; ZHU Cong-Shan   

  1. Photon Craft Project; Shanghai Institute of Optics and Fine Mechanics; Chinese Academy of Sciences; Shanghai 201800; China
  • Received:2003-06-18 Revised:2003-07-28 Published:2004-07-20 Online:2004-07-20

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摘要： 使用聚焦的800nm,120fS,200kHz的高频超短脉冲激光在Li2O-Nb2O5-SiO2系玻璃内部空间选择性析出了LiNbO3晶体。经一定条件的飞秒激光照射数秒钟后,玻璃内部激光会聚点的发光由原来的白色转变为强的蓝绿色。发光光谱测定表明,所产生的蓝绿光为飞秒激光的倍频光。显微拉曼光谱测定表明,飞秒激光会聚处析出了LiNbO3晶体。

关键词: LiNbO3, 玻璃, 飞秒激光

Abstract: Crystal of LiNbO3 was space-selectively induced in Li2O-Nb2O5-SiO2 glass by using a focused femtosecond laser with high repetition rate. The light, which emits from the focal point of the laser, turns from white light to green-blue one as the laser irradiates for a few seconds. The luminescence spectra of the emission from the focal point demonstrate that the green-blue light is the second harmonic generation of the incident femtosecond laser. Micro-Raman spectra demonstrate that LiNbO3 crystal is precipitated in the irradiated region of the glass.

Key words: LiNbO3, glass, femtosecond laser

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