Effects of material properties on laser-induced bubble formation in absorbing liquids and on submerged targets
Effects of material properties on laser-induced bubble formation in absorbing liquids and on submerged targets
复制标题
材料特性对吸收液体中激光诱导气泡形成和水下目标的影响
DOI：
10.1117/12.273417
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
S. Prahl
中科院分区：
文献类型：
--
作者：
H. Shangguan;L. Casperson;A. Shearin;D. Paisley;S. Prahl
脉冲激光消融在充满液体的血管中的血凝块是通过爆炸蒸发过程完成的。由此产生的蒸汽泡迅速膨胀和破裂，破坏血栓（血凝块）。气泡膨胀和破裂后的水动压力也可以作为动力，将溶凝剂输送到血栓中，以增强激光溶栓。因此，激光诱导的气泡形成在血栓去除过程中起着重要的作用。在本研究中，利用微秒频闪或高速分幅相机观察了材料特性对液体和水下目标中激光诱导空化气泡的影响。
Pulsed laser ablation of blood clots in a fluid-filled blood vessel is accomplished by an explosive evaporation process. The resulting vapor bubble rapidly expands and collapses to disrupt the thrombus (blood clot). The hydrodynamic pressures following the bubble expansion and collapse can also be used as a driving force to deliver clot-dissolving agents into thrombus for enhancement of laser thrombolysis. Thus, the laser-induced bubble formation plays an important role in the thrombus removal process. In this study the effects of material properties on laser-induced cavitation bubbles formed in liquids and on submerged targets have been visualized with a microsecond strobe or high speed framing camera.