Generation of shock waves by laser‐induced plasma in confined geometry

摘要: Confined plasmas induced by neodynium glass laser at 1.06 μm and pulse width of 3 30 ns are studied. The metallic target is covered with a dielectric layer, or water, transparent to the radiation. Experimental measurements pressure plasma have been performed. For certain range power density these agree particularly well an analytical model. At high densities (10 GW/cm2), breakdown appears be main limiting process confining method. It observed that this induces saturation pressure. shown use short‐rise‐time only way reduce effects obtain much higher‐pressure shock waves. This due dependence threshold on rise time.