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Nd3+掺杂的氧化镧钇透明激光陶瓷的光谱性能研究
引用本文:丁 君,杨秋红,唐在峰,徐 军,苏良碧. Nd3+掺杂的氧化镧钇透明激光陶瓷的光谱性能研究[J]. 物理学报, 2006, 55(12): 6414-6418
作者姓名:丁 君  杨秋红  唐在峰  徐 军  苏良碧
作者单位:(1)上海大学材料科学与工程学院,上海 200072; (2)中国科学院上海光学精密机械研究所,上海 201800
基金项目:国家自然科学基金(批准号:60578041)资助的课题.
摘    要:采用传统无压烧结工艺制备了Nd3+掺杂的Y2-2xLa2xO3(x=0.08)透明陶瓷并对其光谱性能进行了研究. 结果表明:Nd3+:Y1.84La0.16O3透明陶瓷在780—850 nm的波长范围内有较宽的吸收带. 当Nd3+掺杂量为1.5at%时,在820 nm和激光二极管抽运的808 nm处的吸收截面分别为σabs(820 nm)=1.81×10-20 cm2σabs(808 nm)=1.54×10-20 cm2. 最强的发射峰位于1078 nm处,并具有荧光寿命长、发射带宽宽、量子效率高等特点. 加入La2O3后,基质的光谱品质参数XNd由1.6减小到0.46,因此和4F3/24I11/2跃迁相对应的荧光分支比βJ,11/2增大为56.82%. Nd3+:Y1.84La0.16O3透明陶瓷的这些性质有利于高效率的激光输出和超短锁模激光脉冲的实现. 关键词:氧化镧钇透明陶瓷光谱性能3+')" href="#">Nd3+

关 键 词:氧化镧钇透明陶瓷  光谱性能  Nd3+
文章编号:1000-3290/2006/55(12)/6414-05
收稿时间:2006-03-17
修稿时间:2006-03-172006-06-16

Spectroscopic characteristics of Nd3+-doped yttrium lanthanum oxide trans parent ceramics
Ding Jun,Yang Qiu-Hong,Tang Zai-Feng,Xu Jun and Su Liang-Bi. Spectroscopic characteristics of Nd3+-doped yttrium lanthanum oxide trans parent ceramics[J]. Acta Physica Sinica, 2006, 55(12): 6414-6418
Authors:Ding Jun  Yang Qiu-Hong  Tang Zai-Feng  Xu Jun  Su Liang-Bi
Abstract:Nd3+-doped Y2-2x La2x O3 (x=0.08) transparent ceramics were fabricated by conventional fabrication process. Spectroscopic properties of the samples were investigated. The absorption band of Nd3+: Y1.84La0.16O3 was broad covering the wavelength range 780—850 nm. When doped with 1.5at% Nd3+, the cross sections of the sample at 820 nm and laser diode pumped 808 nm were 1.81×10-20cm2 and 1.54×10-20cm2, respectively. The strongest emission peak of the sample was centered at 1078 nm with long fluorescent lifetime, broad emission bandwidth and high quantum efficiency. Because of the additive La2O3, the spectroscopic quality parameter (XNd) of matrix was decreased from 1.6 to 0.46, thus the fluorescence branch ratio of 4F3/24I11/2 transition was increased to 56.82%. These properties of Nd3+: Y1.84La0.16O3 transparent ceramic are benefitial to achieve high efficient laser output and ultrashort modelocked pulse.
Keywords:yttrium lanthanum oxide transparent ceramics   spectroscopic characteristics   Nd~ 3+
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