Laser vaporisation of absorbing liquid under transparent cover

被引：0
|
作者：
A. A. Samokhin
N. N. Il’ichev
P. A. Pivovarov
A. V. Sidorin
机构：
[1] Russian Academy of Sciences,Prokhorov General Physics Institute
[2] National Research Nuclear University “MEPhI”,undefined
来源：
Bulletin of the Lebedev Physics Institute | 2016年 / 43卷
关键词：
laser radiation effect; photoacoustic effect; total internal reflection;
D O I：
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中图分类号：
学科分类号：
摘要：
Vaporization of absorbing liquid (water) under a transparent solid cover upon exposure to nanosecond pulses of a holmium laser (λ = 2920 nm) is studied using acoustic and optical diagnostics. The features of the optical signal reflected from the liquid–cover interface suggest that a vapor cavity appears at a submicrometer distance from this interface and exists for about one hundred microseconds. An additional acoustic signal appearing after returning the light signal to the initial level is caused by known cavitation effects accompanying vapor cavity fracture and collapse in liquid.
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页码：156 / 159
页数：3
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