Abstract

The possibility of local activation of liquid boiling-up by a laser pulse at the end of a single-mode light guide is shown on the example of n-pentane superheated at 81°C relative to the liquid–vapor equilibrium temperature. An activation threshold is detected for the radiation intensity at the end of the light guide. Its value depends on the state of the light guide end, and the boiling processes are likely to develop at the interface. As with the random boiling-up process, upon activation, a stepwise propagating change in the refractive index of the liquid is observed. A conclusion is drawn on the uniformity of the recorded processes during random and activated boiling-up of n-pentane.

中文翻译：

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激光辐射对过热液体沸腾的脉冲活化

摘要

在单模光导末端通过激光脉冲局部激活液体沸腾的可能性在正戊烷相对于液体-蒸汽平衡温度为81°C过热的例子中显示。在光导末端检测到辐射强度的激活阈值。其值取决于导光端的状态，并且可能在界面处发生沸腾过程。与随机沸腾过程一样，在激活时，可以观察到液体折射率的逐步传播变化。对正戊烷的随机沸腾和活化沸腾过程中记录过程的均匀性得出结论。