Study of the laser induced acoustic underwater source aim at imaging and detecting

Xiaotang Yu, Jianguo Xin*, Jiabin Chen

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

This paper addresses itself to the problem of interaction mechanism of laser induced acoustic source under water. The main photo-acoustic mechanisms include thermal expansion, vaporization and optical breakdown as well as the photon beam pressure. We integrate these into a compound model and compare numerical calculation and simulation results with the existing experimental data. The different energy density thresholds between different mechanisms are calculated. We optimize original thermal expansion by considering various laser pulse-shapes especially Gaussian laser. When discussing vaporization, random bubbles distribution is studied instead of single bubble alone for the first time. Detection distance, pulse duration, laser energy and spot size in heating area all have effect on sound filed intensity, which are studied through this paper.

源语言英语
主期刊名Selected Papers of the Photoelectronic Technology Committee Conferences held June-July 2015
编辑Daren Lv, Lijun Wang, Libin Xiang, Michael I. Petelin, Guangjin Zhang, Songlin Zhuang, Shenggang Liu
出版商SPIE
ISBN(电子版)9781628418804
DOI
出版状态已出版 - 2015
活动International Conference on Frontiers in International Conference on Frontiers in Terahertz Technology and Applications, and the International Symposium on Surface Topography and Optical Microscopy - Harbin, 中国
期限: 23 7月 201525 7月 2015

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
9795
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议International Conference on Frontiers in International Conference on Frontiers in Terahertz Technology and Applications, and the International Symposium on Surface Topography and Optical Microscopy
国家/地区中国
Harbin
时期23/07/1525/07/15

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