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Proceedings Paper

Salt water for optical breakdown laser-generated sound
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Paper Abstract

One possibility for communicating from an airplane above water surface to submarinein sea involves the use of laser-generated sound. In previous work, optical breakdown laser-acoustic pulses in fresh water have been studied and in intense sound source has been excited. In this paper, five kinds of salt water having salinities 1.3%, 2.6%, 3.9%, 5.2% and 6.5% (max salinity of seawater near 4.0%), have been broken down to generate underwater acoustic pulse signals by Q-switched YAG- Nd laser with different pulse energies. After detail analyzing both in time domain and frequency domain, the fact that the salinity of water does not have much influence on laser- acoustic pulse signal would be found. Also, some slight but interesting differences due to different salinity are introduced.

Paper Details

Date Published: 2 October 1998
PDF: 16 pages
Proc. SPIE 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications, (2 October 1998); doi: 10.1117/12.323151
Show Author Affiliations
Duo-Min He, Nanjing Univ. of Science and Technology (China) (Singapore)
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 3464:
Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications
Mario Nicola Armenise; Lev S. Sadovnik; Walter Pecorella; Lev S. Sadovnik, Editor(s)

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