Illumination of a laser melt pool simultaneously with focused and diffused argon-ion laser light is found to provide a greatly improved image of the molten surface.
© 1990 Optical Society of America
Original Manuscript: July 14, 1989
Published: April 20, 1990
David D. Voelkel and J. Mazumder, "Visualization of a laser melt pool," Appl. Opt. 29, 1718-1720 (1990)