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Proceedings Paper

Theoretical and experimental studies of directivity of sound field generated by pulsed laser induced breakdown in liquid water
Author(s): Yanlong Shen; Feng Zhu; Li Yu
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Paper Abstract

High power acoustic sources, generated by laser-induced breakdown when high power laser is focused into water, have extensive application prospects in laser medicine and ocean exploration. Combining the models of sound column and plasma disc in laser-induced breakdown generated sound field, a plasma cylinder model is established. The directivity of the sound field, and it’s characteristics are mapped and analyzed through numerical simulation, as well as theoretical analysis. An experiment is designed and performed to verify the plasma cylinder model. The experimental results, which are in a good agreement with the simulation, reveal the maximum pressure amplitude of the acoustic signals is at the direction vertical to the light propagation, and present a distinct major-lobe and minor-lobes.

Paper Details

Date Published: 16 May 2013
PDF: 8 pages
Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 879614 (16 May 2013); doi: 10.1117/12.2011121
Show Author Affiliations
Yanlong Shen, Northwest Institute of Nuclear Technology (China)
Feng Zhu, Northwest Institute of Nuclear Technology (China)
Li Yu, Northwest Institute of Nuclear Technology (China)

Published in SPIE Proceedings Vol. 8796:
2nd International Symposium on Laser Interaction with Matter (LIMIS 2012)
Stefan Kaierle; Jingru Liu; Jianlin Cao, Editor(s)

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