Oxidation and reduction treatment of photorefractive Fe:LiNbO_3 crystal

• 作 者: 李铭华 赵业权 许克彬 徐玉恒
• 机 构: Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China,Department of
• 出 处: Chinese Science Bulletin
• 发表日期: 1996年08期
• 关键词: doping valence purity oxidizing appearance annealing modulated spots degenerate

Lithitum niobate (LiNbO_3, LN) crystal is an important type of photorefractive materi-als, its photorefractive property can be improved effectively by doping. For example, theoptical damage resistanee and the photorefractive sensitivity of LN crystal can be inerasedby doping Mg and Fe, respectively. Modest treatment of oxidation and reduction can