When high-power lasers are used, the absorption in optical components can lead to distortion and depolarization of a beam, or even damage of components. Photothermal deflection and interferometric calorimetry permit the quantification of the thermal absorption $A_T$ of the laser flux in transparent materials by the measurement of the deflection or distortion of a probe beam caused by the propagation of a pump laser in the material. The purpose of this Letter is to provide a method to measure the absorption of a highly transparent material assisted by a thermal modeling.

中文翻译：

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可见光激光器对透明材料的吸收测量

当使用大功率激光器时，光学组件中的吸收会导致光束畸变和去极化，甚至损坏组件。光热偏转和干涉量热法通过测量由泵浦激光在材料中传播引起的探测光束的偏转或变形，可以量化透明材料中激光通量的热吸收$ A_T $。这封信的目的是提供一种借助热建模来测量高度透明材料的吸收率的方法。