%0 Journal Article %K laser ablation %K probe beam deflection %K blast wave %A Sungho Jeong %A Ralph Greif %A Richard E Russo %B Applied Surface Science %D 1998 %F Laser %G eng %P 1029-1034 %R 10.1016/S0169-4332(97)00785-X %T Propagation of the shock wave generated from excimer laser heating of aluminum target in comparison with the idea blast wave theory %V 127-129 %2 LBNL-41232 %8 05/1998 %X

Propagation of the shock wave generated during pulsed laser heating of aluminum targets was measured utilizing a probe beam deflection technique. The transit time of the laser-generated shock wave was compared with that predicted from the Sedov–Taylor solution for an ideal spherical blast wave. It was found that the most important parameters for the laser-generated shock wave to be consistent with the theoretically predicted propagation are the ambient pressure and the laser beam spot size. The prediction for laser energy conversion into the laser-induced vapor flow using the Sedov–Taylor solution overestimated the energy coupling efficiency, indicating a difference between a laser-induced gas-dynamic flow and an ideal blast wave.