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Title: Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses

Abstract

A series of studies was carried out on the ablation of steel, Si{sub 3}N{sub 4} ceramic, and diamond in air by femtosecond (200 and 900 fs) pulses of different wavelengths (532 and 266 nm) and in a wide energy density range (1 - 10{sup 3} J cm{sup -2}). The ablation rates were measured for different geometries of the irradiation surface [a shallow crater and a channel with a high (up to 10) aspect ratio]. The ablation rates (in a shallow crater) and the morphologies of the irradiated surface were compared for femtosecond and longer (220 ps, 7 ns) pulses. The role of the laser-generated plasma in the ablation of materials by subpicosecond pulses as well as the prospects for the practical application of ultrashort laser pulses in the processing of materials are analysed. (interaction of laser radiation with matter. laser plasma)

Authors:
;  [1];  [2];  [3]; ;  [4];  [5]
  1. Natural Science Center, A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  2. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  3. Laser Research Center, Vilnius University, Vilnius (Lithuania)
  4. Department of Physics, Vilnius University, Vilnius (Lithuania)
  5. Institut fur Strahlwerkzeuge (IFSW), Universitat Stuttgart, Stuttgart (Germany)
Publication Date:
OSTI Identifier:
21454648
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 29; Journal Issue: 8; Other Information: DOI: 10.1070/QE1999v029n08ABEH001560; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABLATION; ASPECT RATIO; CERAMICS; CRATERS; DIAMONDS; ENERGY DENSITY; LASER BEAM MACHINING; LASER RADIATION; LASER-PRODUCED PLASMA; LASERS; MORPHOLOGY; PULSES; RADIATION EFFECTS; SILICON NITRIDES; STEELS; SURFACES; WAVELENGTHS; ALLOYS; CARBON; CARBON ADDITIONS; CAVITIES; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC RADIATION; ELEMENTS; IRON ALLOYS; IRON BASE ALLOYS; MACHINING; MINERALS; NITRIDES; NITROGEN COMPOUNDS; NONMETALS; PLASMA; PNICTIDES; RADIATIONS; SILICON COMPOUNDS; TRANSITION ELEMENT ALLOYS

Citation Formats

Kononenko, Taras V, Konov, Vitalii I, Garnov, Sergei V, Danielius, R, Piskarskas, A, Tamosauskas, G, and Dausinger, F. Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses. United States: N. p., 1999. Web. doi:10.1070/QE1999V029N08ABEH001560.
Kononenko, Taras V, Konov, Vitalii I, Garnov, Sergei V, Danielius, R, Piskarskas, A, Tamosauskas, G, & Dausinger, F. Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses. United States. doi:10.1070/QE1999V029N08ABEH001560.
Kononenko, Taras V, Konov, Vitalii I, Garnov, Sergei V, Danielius, R, Piskarskas, A, Tamosauskas, G, and Dausinger, F. Tue . "Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses". United States. doi:10.1070/QE1999V029N08ABEH001560.
@article{osti_21454648,
title = {Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses},
author = {Kononenko, Taras V and Konov, Vitalii I and Garnov, Sergei V and Danielius, R and Piskarskas, A and Tamosauskas, G and Dausinger, F},
abstractNote = {A series of studies was carried out on the ablation of steel, Si{sub 3}N{sub 4} ceramic, and diamond in air by femtosecond (200 and 900 fs) pulses of different wavelengths (532 and 266 nm) and in a wide energy density range (1 - 10{sup 3} J cm{sup -2}). The ablation rates were measured for different geometries of the irradiation surface [a shallow crater and a channel with a high (up to 10) aspect ratio]. The ablation rates (in a shallow crater) and the morphologies of the irradiated surface were compared for femtosecond and longer (220 ps, 7 ns) pulses. The role of the laser-generated plasma in the ablation of materials by subpicosecond pulses as well as the prospects for the practical application of ultrashort laser pulses in the processing of materials are analysed. (interaction of laser radiation with matter. laser plasma)},
doi = {10.1070/QE1999V029N08ABEH001560},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 8,
volume = 29,
place = {United States},
year = {1999},
month = {8}
}