Thornton J R, Fountain W D, Flint G W, Crow T G
Appl Opt. 1969 Jun 1;8(6):1087-102. doi: 10.1364/AO.8.001087.
The optical properties of neodymium-doped crystalline and glass laser materials have been studied in an attempt to further the development of laser materials (emitting at 1.06 micro) for specific applications. The 1.06-micro fluorescence lifetimes and relative fluorescence conversion efficiencies for the more promising materials such as YAG:Nd and glass:Nd have been measured over the temperature range 300-500 K. Also determined were the effects of sensitization of YAG:Nd by Cr(3+) (the enhancement of 1.06-micro, fluorescence and the Cr(3+) ? Nd(3+) energy transfer times). Further absorption spectra and fluorescence lifetimes have been determined for a large group of crystalline and glass laser media under room temperature conditions. The study of these optical properties and their thermal dependences in this temperature region provide information that is useful in solving laser device problems such as optimization of operating temperature and of pump characteristics. Presented in this paper are the results obtained from the above experimental study of the optical properties together with a collection of data from the literature of optical, thermal, and physical properties of these laser materials.
为了进一步推动用于特定应用的激光材料（发射波长为1.06微米）的发展，人们对掺钕晶体和玻璃激光材料的光学特性进行了研究。在300 - 500 K的温度范围内，测量了诸如YAG:Nd和玻璃:Nd等更具潜力的材料的1.06微米荧光寿命和相对荧光转换效率。还确定了Cr(3+)对YAG:Nd的敏化作用（1.06微米荧光的增强以及Cr(3+)→Nd(3+)的能量转移时间）。在室温条件下，还测定了一大类晶体和玻璃激光介质的进一步吸收光谱和荧光寿命。对该温度区域内这些光学特性及其热依赖性的研究提供了有助于解决激光器件问题的信息，如工作温度和泵浦特性的优化。本文介绍了上述光学特性实验研究的结果，以及这些激光材料的光学、热学和物理特性文献中的一组数据。
