钇
吸收截面
分析化学(期刊)
钕
大气温度范围
材料科学
辐射传输
发射光谱
原子物理学
Crystal(编程语言)
横截面(物理)
吸收(声学)
受激发射
锂(药物)
荧光
化学
谱线
光学
激光器
物理
热力学
内分泌学
复合材料
冶金
医学
程序设计语言
量子力学
色谱法
计算机科学
氧化物
天文
作者
G. Turri,Scott Webster,Michael Bass,A. Toncelli
出处
期刊:Materials
[MDPI AG]
日期:2021-01-16
卷期号:14 (2): 431-431
被引量:7
摘要
Spectroscopic properties of neodymium-doped yttrium lithium fluoride were measured at different temperatures from 35 K to 350 K in specimens with 1 at% Nd3+ concentration. The absorption spectrum was measured at room temperature from 400 to 900 nm. The decay dynamics of the 4F3/2 multiplet was investigated by measuring the fluorescence lifetime as a function of the sample temperature, and the radiative decay time was derived by extrapolation to 0 K. The stimulated-emission cross-sections of the transitions from the 4F3/2 to the 4I9/2, 4I11/2, and 4I13/2 levels were obtained from the fluorescence spectrum measured at different temperatures, using the Aull–Jenssen technique. The results show consistency with most results previously published at room temperature, extending them over a broader range of temperatures. A semi-empirical formula for the magnitude of the stimulated-emission cross-section as a function of temperature in the 250 K to 350 K temperature range, is presented for the most intense transitions to the 4I11/2 and 4I13/2 levels.
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