固体材料激光冷却中基于光纤传输DLT测温技术的研究

袁燕飞; 雷永清; 杨元旭; 李洋; 熊婷婷; 汤钧; 段雪露

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固体材料激光冷却中基于光纤传输DLT测温技术的研究

更新时间：2026-07-10

- 固体材料激光冷却中基于光纤传输DLT测温技术的研究
- Issue 2, Pages: 31-34(2022)
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  CLC： TB302
- Published：2022
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袁燕飞, 雷永清, 杨元旭, et al. 固体材料激光冷却中基于光纤传输DLT测温技术的研究[J]. 2022, (2): 31-34.
DOI：

袁燕飞, 雷永清, 杨元旭, et al. 固体材料激光冷却中基于光纤传输DLT测温技术的研究[J]. 2022, (2): 31-34. DOI：

摘要

实时准确非接触测量固体材料的温度是固体材料激光冷却技术的一个关键问题，也是近年来实验研究固体材料激光冷却领域的一个重要挑战，主要原因是。掺杂稀土离子晶体或者玻璃材料被激光泵浦时，产生的荧光光谱和样品温度有关。我们在实验中利用荧光光谱和样品温度的依赖关系，发展了差分光谱测温法（DLT）实时测量样品的温度。本文对基于光纤传输差分光谱测温技术展开理论和实验研究，在100K-300K温区范围内分析了影响该测温技术的因素。研究发现，DLT测温法在300K时的分辨率为1.9 K，而在100K时的温度分辨率为0.9 K。通过优化该测温技术，在300K时，测温分辨率提高到0.3 K，而在100 K时的温度分辨率提高到0.1 K。

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