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强光致磷酸盐激光玻璃的色心及其ESR研究

姜雄伟1; 邱建荣1,2; 朱从善1; KazuyukiHirao2   

  1. 1. Photon Craft Project; 中国科学院上海光学精密机械研究所; 上海 201800; 2. Photon Craft Project; Keihanna Plaza; Kyoto 619-0237; Japan
  • 收稿日期:2001-12-17 修回日期:2002-02-19 出版日期:2003-01-20 网络出版日期:2003-01-20

Femtosecond Laser Induced Color-center in Phosphate Glasses

JIANG Xiong-Wei1; QIU Jian-Rong1,2; ZHU Cong-Shan1; Kazuyuki Hirao2   

  1. 1.Photon Craft Project; Shanghai Institute of Optics and Fine Mechanics; Shanghai 201800; China; 2.Photon Craft Project; JST; Keihanna Plaza; Kyoto 619-0237; Japan
  • Received:2001-12-17 Revised:2002-02-19 Published:2003-01-20 Online:2003-01-20

摘要: 研究了磷酸盐激光玻璃在120fs,800nm,1kHz脉冲激光照射下的光致暗化现象并测出了它们的光致暗化阈值.由ESR分析得出,磷酸盐玻璃的光致暗化来源于飞秒激光照射处玻璃因激光照射时的多光子吸收而产生的色心.分析了Nd3+对磷酸盐玻璃的光致暗化的影响并讨论了色心的类型.

关键词: 光致色心, 飞秒, 磷酸盐玻璃, ESR

Abstract: Laser-induced darkening in phosphate laser glasses irradiated by an 800nm, 120fs, 1kHz Ti:sapphire laser was studied for the first time. The ESR spectra of irradiated glass shows laser-induced darkening results from color-center generation through multi-photon absorption. The type of the color-center as hole trapped on non-bridging oxygen.

Key words: color-center, femtosecond laser, phosphate glass, ESR

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