The role of plasma in ablation of materials by ultrashort laser pulses

Authors
Klimentov, SM Kononenko, TV Pivovarov, PA Garnov, SV Konov, VI Prokhorov, AM Breitling, D Dausinger, F
Citation
Sm. Klimentov et al., The role of plasma in ablation of materials by ultrashort laser pulses, QUANTUM EL, 31(5), 2001, pp. 378-382
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
QUANTUM ELECTRONICS
ISSN journal
10637818 → ACNP
Volume
31
Issue
5
Year of publication
2001
Pages
378 - 382
Database
ISI
SICI code
1063-7818(200105)31:5<378:TROPIA>2.0.ZU;2-I
Abstract
The ablative formation of deep channels in steel by femtosecond and picosec ond laser pulses is studied. A significant screening of the incident energy inside deep channels is found to occur due to the air breakdown at ablated microparticles. The breakdown thresholds and the microparticle precipitati on times are estimated. This kind of plasma screening stabilises the linear ablation rate and causes a significant channel broadening.