LIGHT-SCATTERING MEASUREMENTS OF THE REPETITIVE SUPERSONIC IMPLOSION OF A SONOLUMINESCING BUBBLE

被引:203
|
作者
BARBER, BP
PUTTERMAN, SJ
机构
[1] Physics Department, University of California, Los Angeles
关键词
D O I
10.1103/PhysRevLett.69.3839
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Light scattering is used to measure the dynamics of the repetitive collapse of a sonoluminescing bubble of gas trapped in water. It is found that the surface of the bubble is collapsing with a supersonic velocity at about the time of light emission which in turn precedes the minimum bubble radius by about 0.03% of the period of the acoustic drive. These observations suggest that the shedding of an imploding shock mediates between the bubble collapse and light emission.
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页码:3839 / 3842
页数:4
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