Effect of water and paint coatings on laser-irradiated targets

Abstract

Plexiglas and metal targets were illuminated in atmospheric air with a Q‐switched neodymium : glass laser. Augmentation of the laser‐induced stress waves was achieved with paint and water coatings. The spallation of Plexiglas and lead was observed. Measurements of the stress‐time histories were taken with quartz stress gauges affixed to the rear surface of aluminum targets.