Expansion and radiative cooling of the laser induced plasma

Publication Type

Journal Article

LBNL Report Number

LBNL-61378

Abstract

To study the expansion and cooling process of the laser induced plasma generated by nanosecond pulsed laser ablation, experiments have been conducted which measure the position of the external shockwaves and the temperature of the vapor plumes. The positions of external shockwaves were determined by a femtosecond laser time-resolved imaging system. Vapor plume temperature was determined from spectroscopic measurements of the plasma emission lines. A model which considers the mass, momentum, and energy conservation of the region affected by the laser energy was developed. It shows good agreement to the experimental data.

Journal

Jourmal of Physics: Conference Series

Volume

59

Year of Publication

2007
343

Issue

1

Pagination

343-347

Short Title

J. Phys.: Conf. Ser.