Effects of material properties on laser-induced bubble formation in absorbing liquids and on submerged targets

HanQun Shangguan; Lee W. Casperson; Alan Shearin; Dennis L. Paisley; Scott A. Prahl

doi:10.1117/12.273417

28 May 1997 Effects of material properties on laser-induced bubble formation in absorbing liquids and on submerged targets

HanQun Shangguan, Lee W. Casperson, Alan Shearin, Dennis L. Paisley, Scott A. Prahl

Author Affiliations +

Proceedings Volume 2869, 22nd International Congress on High-Speed Photography and Photonics; (1997) https://doi.org/10.1117/12.273417
Event: 22nd International Congress on High-Speed Photography and Photonics, 1996, Santa Fe, NM, United States

Abstract

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.

Citation Download Citation

HanQun Shangguan, Lee W. Casperson, Alan Shearin, Dennis L. Paisley, and Scott A. Prahl "Effects of material properties on laser-induced bubble formation in absorbing liquids and on submerged targets", Proc. SPIE 2869, 22nd International Congress on High-Speed Photography and Photonics, (28 May 1997); https://doi.org/10.1117/12.273417

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