Propagation of the shock wave generated from excimer laser heating of aluminum target in comparison with the idea blast wave theory

Publication Type

Journal Article

Date Published

05/1998

Authors

DOI

Abstract

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.

Journal

Applied Surface Science

Volume

127-129

Year of Publication

1998

Notes

LBNL-41232 NOT IN FILE

Organization