Laser-induced deformation modes in thin metal targets
- 1 October 1973
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (10) , 4622-4626
- https://doi.org/10.1063/1.1662012
Abstract
Thin metal targets were irradiated with a Q‐switched neodymium laser. The absorption of the laser energy produced a high‐temperature and ‐pressure plasma which drove stress waves into the targets. In some cases the plasma was confined using the technique developed by Anderholm and it was found that the magnitude of the stress increased with confinement. The histories of the deformations were measured using quartz and single‐slit diffraction gauges and two distinct deformation modes were discovered. The first occurred on a time consistent with the acoustic transit time through the target and the second occurred in terms of transit times, up to an order of magnitude later. This latter late‐time deformation mode resulted in the permanent deformation of the targets.This publication has 15 references indexed in Scilit:
- Laser oscillation and anisotropic gain in the 1 → 0 vibrational band of optically pumped HF gasApplied Physics Letters, 1972
- Laser-induced stress-wave and impulse augmentationApplied Physics Letters, 1972
- LASER-GENERATED STRESS WAVESApplied Physics Letters, 1970
- Investigation of the blast wave from a laser produced gas breakdownPhysics Letters A, 1968
- Laser-Generated Stress Waves in a Dispersive Elastic RodJournal of Applied Physics, 1967
- The Displacements Produced in an Elastic Half-space by a Suddenly Applied Surface ForceIMA Journal of Applied Mathematics, 1966
- Interaction of Laser Radiation with an Absorbing Semi-Infinite Solid BarJournal of Applied Physics, 1966
- Disturbance produced in an elastic half-space by impulsive normal pressureMathematical Proceedings of the Cambridge Philosophical Society, 1964
- Elastic Wave Generation by Electron Bombardment or Electromagnetic Wave AbsorptionJournal of Applied Physics, 1963
- The propagation of plane irrotational waves through an elastoplastic mediumPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1959