Fabrication of Microstructures in LiF Crystals by a Femtosecond Laser
ZHAO Quan-Zhong, QIU Jian-Rong, YANG Lü-Yun, JIANG Xiong-Wei, ZHAO Chong-Jun, ZHU Cong-Shan
Photon Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Fabrication of Microstructures in LiF Crystals by a Femtosecond Laser
ZHAO Quan-Zhong;QIU Jian-Rong;YANG Lü-Yun;JIANG Xiong-Wei;ZHAO Chong-Jun;ZHU Cong-Shan
Photon Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
78.55.Fv ,
76.30.Mi ,
82.50.Pt
Abstract ： We report the space-selective formation of colour centres and refractive index change in LiF crystals at room temperature by an 800 nm Ti:sapphire femtosecond laser irradiation. Optical absorption and photoluminescence spectra have been measured for the crystal before and after the laser irradiation. The absorption spectra indicate F and F+ 3 colour centres are induced in LiF after the laser irradiation. When the temperature of heat treatment reaches 300°C, the absorption peak disappears, indicating that the induced colour centres are bleached. The induced refractive index change is also evaluated. A mechanism for the formation of colour centres and refractive index change is proposed.
Key words ：
78.55.Fv
76.30.Mi
82.50.Pt
出版日期: 2003-10-01
引用本文:
ZHAO Quan-Zhong;QIU Jian-Rong;YANG Lü-Yun;JIANG Xiong-Wei;ZHAO Chong-Jun;ZHU Cong-Shan. Fabrication of Microstructures in LiF Crystals by a Femtosecond Laser[J]. 中国物理快报, 2003, 20(10): 1858-1860.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I10/1858
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