Altering Material Properties

Author:  Mallozzi, Fairand
Source:  US Patent 3,850,698
Doc ID:  1974028
Year of Publication:  1974
Abstract:  
A method of altering properties in a solid target by attaching securely to its surface a layer of solid or liquid overlay material, and directing a ratiotion pulse of high power density (as from a laser) to the layer. The thickness of the target plus any overlay that is absorbent to the ratiation is at least about two micrometers greater than the mean free path of the ratiation therein.