采用融熔急冷法制备了前驱玻璃和与之晶化后的纳米晶结构玻璃陶瓷.利用光辐射理论,计算在两种样品中Nd3各能级的辐射跃迁几率.根据Dexter理论,得到交叉弛豫几率与Nd3+相对浓度的关系.基于速率方程,描述荧光动力学过程.结果表明:晶化作用能降低Nd3+各能级辐射跃迁几率,减小交叉弛豫几率,延缓动态系统趋于平衡的速率.同时,在较低Nd3+相对浓度掺杂时,晶化作用提高4F3/2能级的相对粒子数,减少4I9/2能级的相对粒子数,结果显示晶化作用能有效提高1.06 μm的输出.
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