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Title: Photoacoustic shock wave emission and cavitation from structured optical fiber tips
Authors: Wang, Xincai
Mohammadzadeh, M.
Gonzalez-Avila, Silvestre Roberto
Zheng, Hongyu
Ohl, Claus Dieter
Wan, Y. C.
Keywords: Physical and Mathematical Sciences
Issue Date: 2016
Source: Mohammadzadeh, M., Gonzalez-Avila, S. R., Wan, Y. C., Wang, X., Zheng, H., & Ohl, C. D. (2016). Photoacoustic shock wave emission and cavitation from structured optical fiber tips. Applied Physics Letters, 108(2), 024101-.
Series/Report no.: Applied Physics Letters
Abstract: Photoacoustic waves generated at the tip of an optical fiber consist of a compressive shock wave followed by tensile diffraction waves. These tensile waves overlap along the fiber axis and form a cloud of cavitationbubbles. We demonstrate that shaping the fiber tip through micromachining alters the number and direction of the emitted waves and cavitation clouds. Shock wave emission and cavitation patterns from five distinctively shaped fiber tips have been studied experimentally and compared to a linear wave propagation model. In particular, multiple shock wave emission and generation of strong tension away from the fiber axis have been realized using modified fiber tips. These altered waveforms may be applied for novel microsurgery protocols, such as fiber-based histotripsy, by utilizing bubble-shock wave interaction.
ISSN: 0003-6951
DOI: 10.1063/1.4939511
Rights: © 2016 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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