Hydrodynamic Mechanism of Bleaching a Strongly Absorbing Liquid with a Laser Pulse

摘要

In the present paper, the hydrodynamic divergence of a liquid as a result of strong absorption of laser-pulse energy is studied, and the possibility of bleaching water is considered. Diagrams for the heating and motion of the liquid in the enthalpy-pressure plane are also given for a wide energy range of an yttrium-erbium laser pulse. Dependences for the density, pressure, temperature, and velocity of water on the coordinates and time are obtained.Theoretical estimates for the magnitude of the transmission (transparency) are compared with available experimental data.