Share Email Print
cover

Proceedings Paper

High-power and ultrashort laser pulse ablation of metals: threshold characteristics
Author(s): I. N. Zavestovskaya; O. A. Glazov; N. A. Menkova
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The results of theoretical studies are reported for threshold characteristics of a metal ablation by ultrashort laser pulses. Two possible mechanisms of the laser ablation at laser fluence F≥Fth are considered: thermal mechanism of ablation connected with a kinetics of a metal-vacuum surface evaporation and mechanism of ablation connected with a hydrodynamics of a dense matter. The analysis has been made within the framework of a two-temperature model of metals for two region of laser pulse duration-femtosecond and picosecond, and the extended of a two-temperature model of the metal. Analytical expressions for the ablation-threshold fluency Fth as well as the threshold values of the lattice time temperature Tth(Fth) are obtained.

Paper Details

Date Published: 25 July 2007
PDF: 8 pages
Proc. SPIE 6735, International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications, 673512 (25 July 2007); doi: 10.1117/12.753311
Show Author Affiliations
I. N. Zavestovskaya, P.N. Lebedev Physical Institute (Russia)
O. A. Glazov, P.N. Lebedev Physical Institute (Russia)
N. A. Menkova, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 6735:
International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications

© SPIE. Terms of Use
Back to Top