Abstract

A strong dependence of the optical breakdown in a liquid in the ultrasonic field on the amplitude and frequency of ultrasound is demonstrated. The increase in the intensity of spectral lines of potassium and oxygen during the optical breakdown is detected by the increase in the amplitude and frequency of ultrasound. At the same time, the effect of saturation is observed at high frequencies (above 200 kHz) and for high ultrasonic powers, when the growth in the intensity of spectral lines slows sharply down. This shows that there is no necessity to use high powers and frequencies of ultrasound to study the opto-acoustic effects during optical breakdown in a liquid.

中文翻译：

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超声场中水的激光分解对光声光谱特性的研究

摘要

证明了在超声场中液体中的光学击穿对超声的幅度和频率的强烈依赖性。在光学击穿过程中，钾和氧的光谱线强度的增加可通过超声幅度和频率的增加来检测。同时，当频谱线强度的增长急剧下降时，在高频（200 kHz以上）和高超声功率下会观察到饱和效应。这表明没有必要使用高功率和高频率的超声波来研究液体在光击穿期间的光声效应。