12 August 1988 Nonlinear Optoacoustic Underwater Sound Source
Author Affiliations +
Certain nonlinear optoacoustic generation processes at the water surface were investigated, using a Nd:glass laser operating at a wavelength of 1.0611 as the optical energy source. A new theoretical model called the equilibrium blast model was developed based on the hydrodynamic equations of equilibrium. The conditions at the shock fronts are determined by the maximum entropy condition, and the distribution of energy within the blast is assumed to be through thermal conduction. The model predictions were compared with experimental data. From the experimental results, three distinct processes have been identified: the weak blast, the thermal conduction limited blast, and the emission limited blast. The last deserves further study from a basic physics point of view and from an applications standpoint.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nicholas P Chotiros, Nicholas P Chotiros, } "Nonlinear Optoacoustic Underwater Sound Source", Proc. SPIE 0925, Ocean Optics IX, (12 August 1988); doi: 10.1117/12.945732; https://doi.org/10.1117/12.945732


Self-sustained volume discharge in c-C4F8
Proceedings of SPIE (December 14 2015)
Study of the laser induced acoustic under water source aim...
Proceedings of SPIE (November 04 2015)
Mechanisms of laser cleaning
Proceedings of SPIE (February 06 2000)
High-energy explosively pumped photodissociation lasers
Proceedings of SPIE (December 21 1998)
Study of different ablation models by use of high speed...
Proceedings of SPIE (August 06 1992)

Back to Top