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Proceedings Paper

Experimental characterization of shock wave driven by high power nanosecond pulsed laser in water
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Paper Abstract

In this paper shock waves produced by nanosecond pulsed laser were characterized. The shock wave produced by focusing Q-switched Nd:YAG pulsed laser beam (with energy ~120 mJ, wavelength of λ=532 nm, and pulse duration of 10 ns) in ambient water. Using probe beam deflection technique, the shock velocity was measured around the breakdown region. The results show that the shock wave velocity near the breakdown region is at order of 7000 m/s, and slows down to ~1600m/s at further distances. Using the empirical relations the maximum shock pressure was also calculated. The results show that the shock pressure near the breakdown region is 2×1010 pa, and decreases with increasing distance from the center of the breakdown.

Paper Details

Date Published: 16 November 2010
PDF: 6 pages
Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 77511R (16 November 2010); doi: 10.1117/12.879617
Show Author Affiliations
M. H. Mahdieh, Iran Univ. of Science and Technology (Iran, Islamic Republic of)
M. Nikbakht, Iran Univ. of Science and Technology (Iran, Islamic Republic of)
S. Yazdani, Iran Univ. of Science and Technology (Iran, Islamic Republic of)


Published in SPIE Proceedings Vol. 7751:
XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Tanja Dreischuh; Petar A. Atanasov; Nikola V. Sabotinov, Editor(s)

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