Water Environment Of Laser Propulsion In The Shock Wave Signal Analysis

The research about the interaction between the laser and materials under water is paid to serious attention internationally at present. Nowadays, the research is in the developing phase with lots of problems need to be solved. This article did some fundamental jobs both in theories and experiments of two aspects of plasma shock wave signal and shock wave signal that caused by bubble collapse which caused by the interaction between the laser and target under water environment.The detection system of signals of water sound is built based on the light deflection theory. The shock wave signals are compared in the following 4 aspects:different laser energy from the 3 mm of between the distance of solid surface and the level, deep water and detection of light away from the target when fixed laser energy. As the change of laser energy and detection distance, the change of shock wave signals is scattered by analysis.Through the analysis and summarized of the experimental results, further provide a theoretical reference for experimental device that detect subtle features of a series of the shock wave that produced by the generated, pulsation and collapse of the vacuoles which build on interference method of film shock.The result of this article could be a great reference for the research about the theory of the interaction between laser and materials under water environment.