We find the relationship between the optimal heat-light converting efficiency and the pumping rate, and thus prove the feasibility of laser cooling in Thulium-doped material. Meanwhile, the choice of host material is discussed.
以Tm3+掺杂离子为例,从理论上分析了最小制冷能级间距与激光抽运速率的关系,研究了不同抽运速率下制冷功率与能级间距的关系以及热-光转换效率与能级间距的关系,获得了最佳热-光转换效率与抽运速率的关系,从而探讨了Tm3+掺杂材料用于激光冷却的可行性,并讨论了制冷基体材料的合理选择问题。
参考来源 - 掺杂稀土材料激光冷却的理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
实验表明，调q延时、抽运速率和材料中离子浓度是影响输出脉宽的关键因素。
Experiment indicate that Q-switch delay time, pump rate and ion concentration are the major factors influencing the pulse width.
通过采用EH11模式，我们对光纤激光器的三能级抽运速率方程进行了数值求解。
By using EH11 mode, we have numerically solved the rate equations of a three-level pumping scheme for a fiber laser.
结果表明，与传统激光模式相似，随机激光模式的强度随抽运速率的变化不仅具有阈值特性，而且具有饱和特性。
Results show that the pumping rate dependence of the output intensity presents not only a threshold property, but also a saturation property, just like that of lasing modes in conventional lasers.
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