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Cr，Ca：YAG晶体中Cr4＋的吸收和退火特性
Absorption and Oxygen-annealing Characterizationof Cr￣(4+) in Cr,Ca:Y3Al5O12 Crystals
【摘要】 用Ｃｚｏｃｈｒａｌｓｋｉ法生长了Ｃｒ４＋：ＹＡＧ可调谐激光晶体，对样品进行氧化气氛高温退火实验，分析比较了退火前后Ｃｒ４＋吸收特性的变化，发现退火后样品中Ｃｒ４＋的吸收显著增强；Ｃｒ３＋的主要吸收峰值红移，并提出相应模型对此现象进行了解释。
【Abstract】 Single crystals of Cr,Ca:Y3Al5O12(YAG)were grown by the Czochralski(CZ)method. The aborption characterization of both as-grown and oxygen-annealedcryStals was carried out and compered with each other.Every absorption peak of Cr(4+)andCr(3+)increased in intensity by annealing. It’s also found that the main band position ofCr(3+) was red shifted. These phenomena and formation mechanism were analyscd anddiscuss.
【基金】 国家自然科学基金
- 【文献出处】 中国激光 ,CHINESE JOURNAL OF LASERS , 编辑部邮箱 ,1996年04期
- 【分类号】TN244
- 【被引频次】4
- 【下载频次】70