Numerical simulation for laser-induced breakdown thresholds and ...

Two models to calculate the irradiance threshold for laser-induced breakdown for water have been introduced. Both of the models have been incorporated into a computer code and code results compared to experimentally measured irradiance threshold for breakdown of pure water by nanosecond, picosecond and femtosecond laser pulses in the visible and near-infrared. The result shows that the second one has a wider range than first one to agree with the experiment data. For nanosecond laser pulses, the