Cavitation dynamics and directional microbubble ejection induced by intense femtosecond laser pulses in liquids.
Cavitation dynamics and directional microbubble ejection induced by intense femtosecond laser pulses in liquids.
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液体中强飞秒激光脉冲引起的空化动力学和定向微泡喷射。
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Dubietis
中科院分区：
文献类型：
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作者：
Daniele Faccio;G. Tamosauskas;E. Rubino;J. Darginavičius;D. Papazoglou;D. Papazoglou;S. Tzortzakis;S. Tzortzakis;A. Couairon;A. Dubietis
研究了环形飞秒激光束在水中聚焦时的空化动力学。这种聚焦几何结构减少了有害的非线性光束失真，并增强了介质内的能量沉积，集中在焦点处。我们观察到显着的postcollapse动力学的细长空化气泡与高速喷射的微泡的激光聚焦区域。气泡在两个方向（远离和朝向激光）上沿激光轴沿着喷射。空化气泡的初始形状也被认为是在崩溃期间增强或完全抑制射流形成。在没有喷射的情况下，微泡喷射垂直于激光传播轴发生。
We study cavitation dynamics when focusing ring-shaped femtosecond laser beams in water. This focusing geometry reduces detrimental nonlinear beam distortions and enhances energy deposition within the medium, localized at the focal spot. We observe remarkable postcollapse dynamics of elongated cavitation bubbles with high-speed ejection of microbubbles out of the laser focal region. Bubbles are ejected along the laser axis in both directions (away and towards the laser). The initial shape of the cavitation bubble is also seen to either enhance or completely suppress jet formation during collapse. In the absence of jetting, microbubble ejection occurs orthogonal to the laser propagation axis.
影响因子：
4
作者：
Kun Yang;Yun Zhou;Q. Ren;J. Ye;C. Deng
通讯作者：
Kun Yang;Yun Zhou;Q. Ren;J. Ye;C. Deng
影响因子：
2.4
作者：
Sankin, Georgy N.;Zhou, Yufeng;Zhong, Pei
通讯作者：
Zhong, Pei
影响因子：
3.6
作者：
Aglyamov, Salavat R.;Karpiouk, Andrei B.;Emelianov, Stanislav Y.
通讯作者：
Emelianov, Stanislav Y.