采用提拉法生长出纯的和Nd3+、Tm3+、Ho3+、Dy3+、Pr3+掺杂的大尺寸优质NaGd(WO4)2 晶体.测定了晶体沿(001)和(100)方向的热膨胀系数.测定了晶体的折射率,得到了折射率的色散方程.测量了NaGd(WO4)2 晶体的拉曼光谱,对晶体的振动性能进行研究.对稀土离子掺杂的NaGd(WO4)2 晶体进行了一系列的光谱性质研究,并进行了Judd-Ofelt理论计算.Nd3+:NaGd(WO4)2和Tm3+:NaGd(WO4)2晶体在800 nm附近吸收峰的半高宽和吸收截面较大,有利于LD泵浦.测定了不同能级的荧光寿命,发现Nd3+:NaGd(WO4)2 晶体具有较高的荧光量子效率.采用氙灯闪光灯作为泵浦源,研究了Nd3+:NaGd(WO4)2晶体1060 nm的激光特性.
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