Study of explosive boiling of transparent liquid on metal substrate exposed to nanosecond laser pulses

被引：3
作者：
S. N. Andreev
V. I. Vovchenko
A. A. Samokhin
机构：
[1] Russian Academy of Sciences,Prokhorov General Physics Institute
来源：
Physics of Wave Phenomena | 2007年 / 15卷 / 3期
关键词：
42.62.Fi; 68.35.Rh; 68.60.Dv;
D O I：
10.3103/S1541308X07030041
中图分类号：
学科分类号：
摘要：
Preliminary experimental investigation of photoacoustic pressure signals induced by nanosecond laser pulses in aluminum targets contacting a water layer was performed. It was shown that for some laser intensities the signal has a two-peak structure. The first peak is due to the thermoelastic effect, while the other results from the explosive evaporation. At low intensities, only the first peak is observed. At sufficiently high intensities, the signal recovers the one-peak shape and becomes narrower as compared with the two-peak shape because of the rapid increase in evaporation pressure and earlier beginning of the explosive evaporation.
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页码：182 / 185
页数：3
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