Modulated photothermal deformation in solids
Modulated photothermal deformation in solids
复制标题
固体中的调制光热变形
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
Shun
中科院分区：
文献类型：
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作者：
Bingcheng Li;Zhaoxin Zhen;Shun
作者提出了一个直接适用于方波强度调制情况的固体中调制光热变形的显式三维理论模型。他们还示出了调制频率上的信号幅度的依赖关系，并讨论了热扩散率和固体样品的厚度的影响，连同泵浦光束的半径，对频率的依赖性。理论预测的实验验证表明，其理论模型为材料热物理性质的研究提供了一个精确的定量工具。
The authors present an explicit three-dimensional theoretical model of modulated photothermal deformation in solids which applies directly to the square-wave intensity modulation case. They also show the dependence of the signal amplitude on the modulation frequency and discuss the effects of the thermal diffusivity and the thickness of the solid sample, together with the pump-beam radius, on the frequency dependence. The experimental verification of the theoretical predictions shows that their theoretical model provides an accurately quantitative tool for the study of the thermophysical properties of materials.