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稀土金属氧化物薄膜中的厚度依赖激光光热效应用于污染控制

Yulin Zhang, Yanzhi Wang, Yugang Jiang

|December 19, 2025

概括

这项研究揭示了光学元件的稀土金属氧化物污染导致激光诱导的热效应. 一个预测模型量化了这些影响,为高功率激光系统提供了缓解策略.

科学领域:

光学工程是指光学工程.
材料科学材料科学材料科学
激光物理激光物理

背景情况:

原子吸收光谱 (AAS) 的采用引发了人们对激光诱导的光学元件降解的担忧.
以前的研究集中在碳污染物上,忽略了稀土金属氧化物.

研究的目的:

研究稀土金属氧化物污染的激光诱导热效应,特别是氧化.
开发热反应的预测模型,并探索缓解策略.

主要方法:

在激光照射 (10 kHz重复率) 下对被氧化污染的层进行实验分析.
计算建模以建立表面温度的预测模型.
束直径调制以评估热效应减轻.

主要成果:

在氧化物层中发现了一种厚度依赖的光热反应.
开发了一个具有>99.3%准确度的预测模型,显示温度对激光功率和吸收率的线性依赖.
通过光束直径调制证明了热效应的非线性缓解.

结论:

建立了稀土金属氧化物污染的厚度-吸收率相位图,使实时监测值成为可能.
拟议的激光功率吸收率相位图提供了在高功率激光系统中减轻热扭曲的策略.

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