Photothermal radiometry with solid cylindrical samples

被引：0

作者：

机构：

[1] Wang, Chinhua

[2] Mandelis, Andreas

[3] Liu, Yue

来源：

Wang, C. | 1600年 / American Institute of Physics Inc.卷 / 96期

关键词：

Green's function - Infrared radiation - Laser beams - Light absorption - Mathematical models - Parameter estimation - Thermal diffusion;

D O I：

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学科分类号：

摘要：

The applications of the photothermal diagnostics by means of laser-infrared photothermal radiometry (PTR) to the samples with curved surfaces were discussed. The thermal-wave field distribution of a cylindrical surface, which was under the excitation of a modulated uniform beam and was based on the Green function method was also discussed. It was observed that the laser beam, which was of a cylindrical symmetry, impinges uniformly or fully on the cylindrical surface, which was infinitely long along the axial direction. The results show that the thermal diffusivity of the material was the thermophysical property involved in the frequency dependence of the thermal-wave field.

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