Optical breakdown laser-generated sound in water

Duo-Min He; Anand Krishna Asundi

doi:10.1117/12.323152

2 October 1998 Optical breakdown laser-generated sound in water

Duo-Min He, Anand Krishna Asundi

Proceedings Volume 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications; (1998) https://doi.org/10.1117/12.323152
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

One possibility for communicating from an airplane above water surface to submarine in sea involves the use of laser- generated sound. In this paper, we introduce the way to generate strong optical breakdown acoustic signal in a limited large volume of water but enough to do basic work in air- submarine communication realm. The optical breakdown mechanism of strong Nd:YAG laser pulse with water generates acoustic signals in water having pulse widths about 25 microseconds and a frequency spectrum peak about 58 kHz. And, its sound source level (SSL) of 196 dB for low frequencies less than 58 kHz is sufficient to be detected at far distant deep in water. This makes a stride for pursuing the feasibility of laser-acoust air-submarine communication.

Citation Download Citation

Duo-Min He and Anand Krishna Asundi "Optical breakdown laser-generated sound in water", Proc. SPIE 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications, (2 October 1998); https://doi.org/10.1117/12.323152

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